subject:(factor analysis)

Clemson University

1. Robertson, Stephen. Bifactor Models and Factor Collapse: A Monte Carlo Study.

Degree: PhD, Psychology, 2019, Clemson University

URL: https://tigerprints.clemson.edu/all_dissertations/2366

► Though available for over 80 years, bifactor models have recently experienced a resurgence in the psychological and social sciences literature (Reise, 2012). Bifactor models… (more)

▼ Though available for over 80 years, bifactor models have recently experienced a resurgence in the psychological and social sciences literature (Reise, 2012). Bifactor models provide an attractive alternative to modeling multidimensional data compared to other approaches (e.g., correlated factors model, second-order factor model). Unlike alternative models, bifactor modeling can effectively model variance that is common between all items and variance that is specific to particular subscales (i.e., specific factors) within a measure. Given its unique benefits, researchers have applied bifactor models to previously validated multidimensional inventories. Researchers have found that when using bifactor modeling on some established scales (e.g., Chen, Hayes, Carver, Laurenceau, & Zhang, 2012; Chen, West, & Sousa, 2006), that particular subscales no longer have significant loadings. This phenomenon is referred to as factor collapse (Mansolf & Reise, 2016) and occurs when a substantial amount of variance is shifted to the general factor from one or more specific factors. As bifactor models are applied to more established scales, researchers will likely continue to discover more subscales that collapse onto the general factor and that these subscales contain items that only measure the general factor. Manipulating eight independent variables in a 3 (sample size) × 3 (number of variables per specific factor) × 3 (number of specific factors) × 3 (number of collapsed factors) × 2 (presence or absence of cross-loadings) × 3 (size of specific factor loadings) × 3 (size of general factor loadings) × 2 (presence or absence of pure indicators) factorial design with 100 samples per condition, a Monte Carlo simulation was conducted in R to better understand when factor collapse occurs, if it can it be accurately detected using currently available rotation methods, and the theoretical and practical implications this has for psychological measurement. Results indicated that one rotation, the Schmid-Leiman with iterative target rotation, performed better than other rotations. Implications regarding the results of the simulation and nuances involved in the use of bifactor models are discussed. Advisors/Committee Members: Patrick J Rosopa, Cindy Pury, Job Chen, Ryan Gagnon.

Subjects/Keywords: Bifactor; Exploratory factor analysis; Factor collapse

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Robertson, S. (2019). Bifactor Models and Factor Collapse: A Monte Carlo Study. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/2366

Chicago Manual of Style (16^th Edition):

Robertson, Stephen. “Bifactor Models and Factor Collapse: A Monte Carlo Study.” 2019. Doctoral Dissertation, Clemson University. Accessed March 02, 2021. https://tigerprints.clemson.edu/all_dissertations/2366.

MLA Handbook (7^th Edition):

Robertson, Stephen. “Bifactor Models and Factor Collapse: A Monte Carlo Study.” 2019. Web. 02 Mar 2021.

Vancouver:

Robertson S. Bifactor Models and Factor Collapse: A Monte Carlo Study. [Internet] [Doctoral dissertation]. Clemson University; 2019. [cited 2021 Mar 02]. Available from: https://tigerprints.clemson.edu/all_dissertations/2366.

Council of Science Editors:

Robertson S. Bifactor Models and Factor Collapse: A Monte Carlo Study. [Doctoral Dissertation]. Clemson University; 2019. Available from: https://tigerprints.clemson.edu/all_dissertations/2366

University of Tasmania

2. Chequer, S. Evaluating the construct validity of Implicit Association Tests using Confirmatory Factor Analytic Models.

Degree: 2014, University of Tasmania

URL: https://eprints.utas.edu.au/21726/1/Whole-Chequer-thesis.pdf

► The Implicit Association Test (IAT) is the most widely used method for assessing implicit bias and prejudice. By avoiding the need for introspection, the IAT… (more)

Subjects/Keywords: Implicit Attitude Confirmatory Factor Analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Chequer, S. (2014). Evaluating the construct validity of Implicit Association Tests using Confirmatory Factor Analytic Models. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/21726/1/Whole-Chequer-thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Chequer, S. “Evaluating the construct validity of Implicit Association Tests using Confirmatory Factor Analytic Models.” 2014. Thesis, University of Tasmania. Accessed March 02, 2021. https://eprints.utas.edu.au/21726/1/Whole-Chequer-thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Chequer, S. “Evaluating the construct validity of Implicit Association Tests using Confirmatory Factor Analytic Models.” 2014. Web. 02 Mar 2021.

Vancouver:

Chequer S. Evaluating the construct validity of Implicit Association Tests using Confirmatory Factor Analytic Models. [Internet] [Thesis]. University of Tasmania; 2014. [cited 2021 Mar 02]. Available from: https://eprints.utas.edu.au/21726/1/Whole-Chequer-thesis.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chequer S. Evaluating the construct validity of Implicit Association Tests using Confirmatory Factor Analytic Models. [Thesis]. University of Tasmania; 2014. Available from: https://eprints.utas.edu.au/21726/1/Whole-Chequer-thesis.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

3. Nolan, Katherine A. Effects of Ignoring Hierarchical Data Structure on Factor Analytic Models.

Degree: 2014, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/21823

► Educational research often involves hierarchical or nested data such as students nested within classrooms. Nested data violates the independence assumption which may lead to incorrect… (more)

Subjects/Keywords: nested; hierarchical; multilevel; factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nolan, K. A. (2014). Effects of Ignoring Hierarchical Data Structure on Factor Analytic Models. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/21823

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nolan, Katherine A. “Effects of Ignoring Hierarchical Data Structure on Factor Analytic Models.” 2014. Thesis, Penn State University. Accessed March 02, 2021. https://submit-etda.libraries.psu.edu/catalog/21823.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nolan, Katherine A. “Effects of Ignoring Hierarchical Data Structure on Factor Analytic Models.” 2014. Web. 02 Mar 2021.

Vancouver:

Nolan KA. Effects of Ignoring Hierarchical Data Structure on Factor Analytic Models. [Internet] [Thesis]. Penn State University; 2014. [cited 2021 Mar 02]. Available from: https://submit-etda.libraries.psu.edu/catalog/21823.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nolan KA. Effects of Ignoring Hierarchical Data Structure on Factor Analytic Models. [Thesis]. Penn State University; 2014. Available from: https://submit-etda.libraries.psu.edu/catalog/21823

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Yoxsimer, Andrew Day. A Factor Analysis of the Student School Uniform Survey.

Degree: 2015, University of Nevada – Reno

URL: http://hdl.handle.net/11714/2616

► The primary purpose of this study was to investigate the factor structure of the Student School Uniform Survey, developed by Sanchez, Yoxsimer, and Hill (2012)… (more)

▼ The primary purpose of this study was to investigate the factor structure of the Student School Uniform Survey, developed by Sanchez, Yoxsimer, and Hill (2012) for the purpose of collecting data on student perceptions of the benefits of wearing a school uniform. A secondary purpose of this study was to investigate relationships among responses based on student membership in the demographic groupings of gender, ethnicity, and grade level. This quantitative study utilized existing, de-identified data that related to sixth, seventh, and eighth grade students at three middle schools in northern Nevada. The data were collected in each school at the conclusion of the first year of a mandatory school uniform policy. A factor analysis was conducted on 32 of the survey items which revealed 13 of the items contributed to three meaningful factors: Factor 1- Safety and Behavior of Others, Factor 2- Acceptance and My Behavior, and Factor 3-Ease of Going to School. Internal reliability of the survey items was assessed using Cronbach’s alpha coefficient (α), which indicated the 13 variables that related to each of the identified factors had a high degree of reliability (α > . 70). To check the factors for reliability, a Pearson’s product moment correlation was conducted. In all cases the identified factors had a high degree of reliability. Finally, three multivariate analyses of variance (MANOVA) were conducted to determine if demographic groups identified by gender, ethnicity, and grade level had discrepant response patterns on the three identified factors. Where significance was found, an analysis of variance (ANOVA) was calculated and the factor means were examined to identify which groups responded higher on each factor. The results revealed that seventh grade students responded higher on Factors 1 and 3, Hispanic/Latino respondents responded higher on Factors 2 and 3, and there were no differences in response patterns by gender. Advisors/Committee Members: Hill, George C. (advisor), Usinger, Janet (committee member), Sanchez, Jafeth (committee member), Thornton, Bill (committee member), Maddux, Cleborne (committee member), Rosenberg, Howard (committee member).

Subjects/Keywords: factor analysis; school uniforms; survey

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Yoxsimer, A. D. (2015). A Factor Analysis of the Student School Uniform Survey. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/2616

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yoxsimer, Andrew Day. “A Factor Analysis of the Student School Uniform Survey.” 2015. Thesis, University of Nevada – Reno. Accessed March 02, 2021. http://hdl.handle.net/11714/2616.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yoxsimer, Andrew Day. “A Factor Analysis of the Student School Uniform Survey.” 2015. Web. 02 Mar 2021.

Vancouver:

Yoxsimer AD. A Factor Analysis of the Student School Uniform Survey. [Internet] [Thesis]. University of Nevada – Reno; 2015. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11714/2616.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yoxsimer AD. A Factor Analysis of the Student School Uniform Survey. [Thesis]. University of Nevada – Reno; 2015. Available from: http://hdl.handle.net/11714/2616

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University

5. Wilkins, Donald Monroe. Factor analysis and multiple scalogram analysis : a logical and empirical comparison.

Degree: PhD, 1962, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:41184

Subjects/Keywords: Factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wilkins, D. M. (1962). Factor analysis and multiple scalogram analysis : a logical and empirical comparison. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:41184

Chicago Manual of Style (16^th Edition):

Wilkins, Donald Monroe. “Factor analysis and multiple scalogram analysis : a logical and empirical comparison.” 1962. Doctoral Dissertation, Michigan State University. Accessed March 02, 2021. http://etd.lib.msu.edu/islandora/object/etd:41184.

MLA Handbook (7^th Edition):

Wilkins, Donald Monroe. “Factor analysis and multiple scalogram analysis : a logical and empirical comparison.” 1962. Web. 02 Mar 2021.

Vancouver:

Wilkins DM. Factor analysis and multiple scalogram analysis : a logical and empirical comparison. [Internet] [Doctoral dissertation]. Michigan State University; 1962. [cited 2021 Mar 02]. Available from: http://etd.lib.msu.edu/islandora/object/etd:41184.

Council of Science Editors:

Wilkins DM. Factor analysis and multiple scalogram analysis : a logical and empirical comparison. [Doctoral Dissertation]. Michigan State University; 1962. Available from: http://etd.lib.msu.edu/islandora/object/etd:41184

6. Campbell, Stephanie Wood. The Life Purpose Questionnaire: a Factor-Analytic Investigation.

Degree: MA, Psychology, 2012, University of Mississippi

URL: https://egrove.olemiss.edu/etd/74

► Meaning in life has been a popular topic of philosophy and study, and the perceived presence of meaning in one's life has been associated with… (more)

Subjects/Keywords: Factor Analysis; Psychometric; Tetrachoric; Psychology

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Campbell, S. W. (2012). The Life Purpose Questionnaire: a Factor-Analytic Investigation. (Masters Thesis). University of Mississippi. Retrieved from https://egrove.olemiss.edu/etd/74

Chicago Manual of Style (16^th Edition):

Campbell, Stephanie Wood. “The Life Purpose Questionnaire: a Factor-Analytic Investigation.” 2012. Masters Thesis, University of Mississippi. Accessed March 02, 2021. https://egrove.olemiss.edu/etd/74.

MLA Handbook (7^th Edition):

Campbell, Stephanie Wood. “The Life Purpose Questionnaire: a Factor-Analytic Investigation.” 2012. Web. 02 Mar 2021.

Vancouver:

Campbell SW. The Life Purpose Questionnaire: a Factor-Analytic Investigation. [Internet] [Masters thesis]. University of Mississippi; 2012. [cited 2021 Mar 02]. Available from: https://egrove.olemiss.edu/etd/74.

Council of Science Editors:

Campbell SW. The Life Purpose Questionnaire: a Factor-Analytic Investigation. [Masters Thesis]. University of Mississippi; 2012. Available from: https://egrove.olemiss.edu/etd/74

University of Hong Kong

7. Kwan, Chi-wai. Influential observations in factor analysis.

Degree: 1998, University of Hong Kong

URL: http://hdl.handle.net/10722/32202

Subjects/Keywords: Factor analysis.

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kwan, C. (1998). Influential observations in factor analysis. (Thesis). University of Hong Kong. Retrieved from http://hdl.handle.net/10722/32202

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kwan, Chi-wai. “Influential observations in factor analysis.” 1998. Thesis, University of Hong Kong. Accessed March 02, 2021. http://hdl.handle.net/10722/32202.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kwan, Chi-wai. “Influential observations in factor analysis.” 1998. Web. 02 Mar 2021.

Vancouver:

Kwan C. Influential observations in factor analysis. [Internet] [Thesis]. University of Hong Kong; 1998. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10722/32202.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kwan C. Influential observations in factor analysis. [Thesis]. University of Hong Kong; 1998. Available from: http://hdl.handle.net/10722/32202

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Kansas

8. Poppert, Katrina Marie. A Confirmatory Factor Analysis of the Children's Report of Sleep Patterns.

Degree: MA, Clinical Child Psychology, 2015, University of Kansas

URL: http://hdl.handle.net/1808/19546

► Sleep is essential for learning, memory, neurobehavioral functioning, and emotion regulation. The importance of sleep in children has led to the creation of numerous sleep… (more)

▼ Sleep is essential for learning, memory, neurobehavioral functioning, and emotion regulation. The importance of sleep in children has led to the creation of numerous sleep assessment instruments. However, there is a dearth of validated self-report measures. In an attempt to fill the gap, the Children’s Report of Sleep Patterns (CRSP) was developed for children ages 8-12. Despite its apparent strengths, the initial validation of the complete CRSP in this age group reported a number of scales and indices that were not empirically evaluated and only Cronbach alphas were reported. To further explore the psychometric properties of the CRSP in school-aged children, factor analysis is necessary to understand the latent structure, as well as the relationships among the constructs. The purpose of this study was to examine the first-order factor structure of the Sleepiness Scale and the Sleep Disturbances Scales of the CRSP in a sample of preadolescent children. As an exploratory aim, the degree to which the five scales contributed to a higher-order Sleep Problems Total Score was examined. Participants were 3rd-5th grade children recruited from two elementary schools (N = 109). Results of the current study revealed that the hypothesized first-order factor structure is not supported and several modifications are necessary to achieve acceptable model fit. Based on modifications from the first-order model, the Sleep Problems Total Score was derived, achieving high internal consistency. Therefore, it is recommended that the Sleep Problems Total Score be calculated and used in conjunction with other scales obtained from the CRSP. Despite promising findings, researchers and clinicians interested in using the CRSP should continue to assess its validity by exploring the relationship between the measure and objective measures of sleep patterns and behavior. Advisors/Committee Members: Steele, Ric G (advisor), Roberts, Michael C (cmtemember), Cushing, Christopher C (cmtemember).

Subjects/Keywords: Psychology; Children; Factor Analysis; Sleep

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Poppert, K. M. (2015). A Confirmatory Factor Analysis of the Children's Report of Sleep Patterns. (Masters Thesis). University of Kansas. Retrieved from http://hdl.handle.net/1808/19546

Chicago Manual of Style (16^th Edition):

Poppert, Katrina Marie. “A Confirmatory Factor Analysis of the Children's Report of Sleep Patterns.” 2015. Masters Thesis, University of Kansas. Accessed March 02, 2021. http://hdl.handle.net/1808/19546.

MLA Handbook (7^th Edition):

Poppert, Katrina Marie. “A Confirmatory Factor Analysis of the Children's Report of Sleep Patterns.” 2015. Web. 02 Mar 2021.

Vancouver:

Poppert KM. A Confirmatory Factor Analysis of the Children's Report of Sleep Patterns. [Internet] [Masters thesis]. University of Kansas; 2015. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1808/19546.

Council of Science Editors:

Poppert KM. A Confirmatory Factor Analysis of the Children's Report of Sleep Patterns. [Masters Thesis]. University of Kansas; 2015. Available from: http://hdl.handle.net/1808/19546

University of Canterbury

9. Hodliffe, Morgana Catharine. The Development and Validation of the Employee Resilience Scale (EmpRes): The Conceptualisation of a New Model.

Degree: MS, Psychology, 2014, University of Canterbury

URL: http://dx.doi.org/10.26021/3747

► The need for an employee-specific measure of resilience has directed the development of the Employee Resilience Scale (EmpRes). The conceptualisation of employee resilience in the… (more)

Subjects/Keywords: Resilience; mediating; factor analysis; scale

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hodliffe, M. C. (2014). The Development and Validation of the Employee Resilience Scale (EmpRes): The Conceptualisation of a New Model. (Masters Thesis). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/3747

Chicago Manual of Style (16^th Edition):

Hodliffe, Morgana Catharine. “The Development and Validation of the Employee Resilience Scale (EmpRes): The Conceptualisation of a New Model.” 2014. Masters Thesis, University of Canterbury. Accessed March 02, 2021. http://dx.doi.org/10.26021/3747.

MLA Handbook (7^th Edition):

Hodliffe, Morgana Catharine. “The Development and Validation of the Employee Resilience Scale (EmpRes): The Conceptualisation of a New Model.” 2014. Web. 02 Mar 2021.

Vancouver:

Hodliffe MC. The Development and Validation of the Employee Resilience Scale (EmpRes): The Conceptualisation of a New Model. [Internet] [Masters thesis]. University of Canterbury; 2014. [cited 2021 Mar 02]. Available from: http://dx.doi.org/10.26021/3747.

Council of Science Editors:

Hodliffe MC. The Development and Validation of the Employee Resilience Scale (EmpRes): The Conceptualisation of a New Model. [Masters Thesis]. University of Canterbury; 2014. Available from: http://dx.doi.org/10.26021/3747

University of Canterbury

10. Gilmour, Lucy Patricia. An Investigation into the Fantasy Proneness Construct.

Degree: Masters of Science, Psychology, 2012, University of Canterbury

URL: http://dx.doi.org/10.26021/6446

► Evidence that an instrument measures what it purports to measure is essential to empirically study the given construct. Despite this fact, little attention has been… (more)

Subjects/Keywords: Fantasy Proneness; Factor Analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Gilmour, L. P. (2012). An Investigation into the Fantasy Proneness Construct. (Masters Thesis). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/6446

Chicago Manual of Style (16^th Edition):

Gilmour, Lucy Patricia. “An Investigation into the Fantasy Proneness Construct.” 2012. Masters Thesis, University of Canterbury. Accessed March 02, 2021. http://dx.doi.org/10.26021/6446.

MLA Handbook (7^th Edition):

Gilmour, Lucy Patricia. “An Investigation into the Fantasy Proneness Construct.” 2012. Web. 02 Mar 2021.

Vancouver:

Gilmour LP. An Investigation into the Fantasy Proneness Construct. [Internet] [Masters thesis]. University of Canterbury; 2012. [cited 2021 Mar 02]. Available from: http://dx.doi.org/10.26021/6446.

Council of Science Editors:

Gilmour LP. An Investigation into the Fantasy Proneness Construct. [Masters Thesis]. University of Canterbury; 2012. Available from: http://dx.doi.org/10.26021/6446

University of Texas – Austin

11. Allua, Shane Suzanne, 1975-. Evaluation of single- and multilevel factor mixture model estimation.

Degree: PhD, Educational Psychology, 2007, University of Texas – Austin

URL: http://hdl.handle.net/2152/13148

► Confirmatory factor analysis (CFA) models test the plausibility of latent constructs hypothesized to account for relations among observed variables. CFA models can be used to… (more)

▼ Confirmatory factor analysis (CFA) models test the plausibility of latent constructs hypothesized to account for relations among observed variables. CFA models can be used to model both hierarchical data structures as a result of cluster sampling designs and investigate the plausibility of latent classes or unobserved classes of individuals. Recent research has suggested preliminary evidence on the accuracy of typical fit indices (AIC, BIC, aBIC, LMR aLRT) among various single-level latent class models, multilevel latent class models that correct for biased standard error estimates as a result of nested data, and growth mixture models (Clark & Muthén, 2007; Nylund et al., 2006, Tofighi & Enders, 2006). But few, if any, researchers have studied the accuracy of the fit indices in multilevel factor mixture models. The purpose of this study was to extend the literature in this less researched area and assess the performance of typical fit indices used to compare factor mixture models. Class separation, intraclass correlation, and between-cluster sample size were manipulated to emulate realistic typical research conditions. The proportion of times out of a possible 100 replications in which each of the AIC, BIC, aBIC, and LMR aLRT led to selection of the correctly specified model among other mis-specified models was recorded. Results for data generated to fit one-class models indicated that the BIC and aBIC outperformed the AIC and the LMR aLRT was nonsignificant nearly 100% of the time, supporting the correct one-class model. Performance of all fit indices was, however, poor when data were generated to originate from two-class models. The AIC and LMR aLRT tended to perform better than the BIC and aBIC, although accuracy of all fit indices increased as a function of increasing class separation and between-cluster sample size. Implications and recommendations regarding optimal fit indices under various conditions are reported. It is hoped that the current research has provided initial evidence of conditions in which the various fit indices are more likely to model the correct number of latent classes in multilevel data. Advisors/Committee Members: Beretvas, Susan Natasha (advisor).

Subjects/Keywords: Factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Allua, Shane Suzanne, 1. (2007). Evaluation of single- and multilevel factor mixture model estimation. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/13148

Chicago Manual of Style (16^th Edition):

Allua, Shane Suzanne, 1975-. “Evaluation of single- and multilevel factor mixture model estimation.” 2007. Doctoral Dissertation, University of Texas – Austin. Accessed March 02, 2021. http://hdl.handle.net/2152/13148.

MLA Handbook (7^th Edition):

Allua, Shane Suzanne, 1975-. “Evaluation of single- and multilevel factor mixture model estimation.” 2007. Web. 02 Mar 2021.

Vancouver:

Allua, Shane Suzanne 1. Evaluation of single- and multilevel factor mixture model estimation. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2007. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2152/13148.

Council of Science Editors:

Allua, Shane Suzanne 1. Evaluation of single- and multilevel factor mixture model estimation. [Doctoral Dissertation]. University of Texas – Austin; 2007. Available from: http://hdl.handle.net/2152/13148

University of British Columbia

12. Hellyer, Sydney. Multiple-factor analysis : its purpose and meaning.

Degree: MA- MA, Psychology, 1950, University of British Columbia

URL: http://hdl.handle.net/2429/41414

► The purpose of the present study was that of presenting the fundamental theorems and techniques of Thurstone's Multiple-Factor Analysis in a manner that would be… (more)

▼ The purpose of the present study was that of presenting the fundamental theorems and techniques of Thurstone's Multiple-Factor Analysis in a manner that would be understandable to the non-mathematically trained student of psychology. The work was introduced by a discussion of Spearman's "Theory of Two Factors" which is so-called since the method analyses each test into a general factor "g" and a specific factor. It was found that such a factorization could be performed if the correlation matrix exhibited hierarchical order. The tetrad difference equation and a standard error formula were next discussed as tests of this order. Finally, mention was made of a few of the problems which investigators have attempted to solve by means of the method. Upon turning attention to the multiple-factor theory, an initial chapter was devoted to the presentation of the relationship between such theory and scientific method in general. This facilitated a discussion of some of the major limitations and values of the technique. It was found that the methods could best be designated as classificatory. Furthermore, it was discovered that factor analysis was not only applicable to a diversity of problems in psychology but also to those of other sciences. Following this more general discussion, consideration was given to the derivation of the fundamental equations. It was proven that if the original scores are converted to standard form the sum of the squares of the factor loadings for any test is equal to unity. It was also shown that each factor loading for statistically independent factors is the square root of the variance that is attributable to that factor. The fundamental theorem of factor analysis, which proves that any reduced correlation matrix can be factorized, was then discussed since it is basic to the entire theory. The centroid method of factoring a reduced correlation matrix was next developed. A method was thus obtained by which the correlation matrix could be analysed into a common factor matrix. However, since Thurstone does not consider these to be psychologically meaningful factors it was found that a rotation of reference frame must then be carried out. Consideration was given to the problem of rotating axes and a method examined which enables one to rotate axes in a two-dimensional plot. This method was found to be such that it could be generalized to an r dimensional factor pattern. It had the advantage of furnishing a graphic record of the relationships among the tests. However, it had a disadvantage in that many diagrams must be plotted if the number of dimensions is large. Upon examining the problem of attaching psychological meaning to the factors, it was noted that subjectivity must play a large part and so no rote rules could be furnished as a solution to this problem. For this reason several examples of interpretations were presented in order to enable the reader to obtain a clearer insight into the logical steps employed. Finally, the limitations of this study were considered and a brief discussion of…

Subjects/Keywords: Factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hellyer, S. (1950). Multiple-factor analysis : its purpose and meaning. (Masters Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/41414

Chicago Manual of Style (16^th Edition):

Hellyer, Sydney. “Multiple-factor analysis : its purpose and meaning.” 1950. Masters Thesis, University of British Columbia. Accessed March 02, 2021. http://hdl.handle.net/2429/41414.

MLA Handbook (7^th Edition):

Hellyer, Sydney. “Multiple-factor analysis : its purpose and meaning.” 1950. Web. 02 Mar 2021.

Vancouver:

Hellyer S. Multiple-factor analysis : its purpose and meaning. [Internet] [Masters thesis]. University of British Columbia; 1950. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2429/41414.

Council of Science Editors:

Hellyer S. Multiple-factor analysis : its purpose and meaning. [Masters Thesis]. University of British Columbia; 1950. Available from: http://hdl.handle.net/2429/41414

Virginia Tech

13. Sullivan, Connor Patrick. Development of the Posttraumatic Anger Scale.

Degree: MS, Psychology, 2015, Virginia Tech

URL: http://hdl.handle.net/10919/78047

► Anger is a pervasive problem after individuals experience traumatic stress that heightens the risk for violence, health problems, poor relationships, and poor treatment outcomes. Previous… (more)

Subjects/Keywords: PTSD; anger; factor analysis; psychometrics

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sullivan, C. P. (2015). Development of the Posttraumatic Anger Scale. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/78047

Chicago Manual of Style (16^th Edition):

Sullivan, Connor Patrick. “Development of the Posttraumatic Anger Scale.” 2015. Masters Thesis, Virginia Tech. Accessed March 02, 2021. http://hdl.handle.net/10919/78047.

MLA Handbook (7^th Edition):

Sullivan, Connor Patrick. “Development of the Posttraumatic Anger Scale.” 2015. Web. 02 Mar 2021.

Vancouver:

Sullivan CP. Development of the Posttraumatic Anger Scale. [Internet] [Masters thesis]. Virginia Tech; 2015. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10919/78047.

Council of Science Editors:

Sullivan CP. Development of the Posttraumatic Anger Scale. [Masters Thesis]. Virginia Tech; 2015. Available from: http://hdl.handle.net/10919/78047

Texas Christian University

14. Neil, Allan Frank. Alternative methods for the factor analytic treatment of ipsative scores, with particular reference to the Edwards personal preference schedule / by Allan Frank Neil.

Degree: 1973, Texas Christian University

URL: https://repository.tcu.edu/handle/116099117/34688

Subjects/Keywords: Factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Neil, A. F. (1973). Alternative methods for the factor analytic treatment of ipsative scores, with particular reference to the Edwards personal preference schedule / by Allan Frank Neil. (Thesis). Texas Christian University. Retrieved from https://repository.tcu.edu/handle/116099117/34688

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Neil, Allan Frank. “Alternative methods for the factor analytic treatment of ipsative scores, with particular reference to the Edwards personal preference schedule / by Allan Frank Neil.” 1973. Thesis, Texas Christian University. Accessed March 02, 2021. https://repository.tcu.edu/handle/116099117/34688.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Neil, Allan Frank. “Alternative methods for the factor analytic treatment of ipsative scores, with particular reference to the Edwards personal preference schedule / by Allan Frank Neil.” 1973. Web. 02 Mar 2021.

Vancouver:

Neil AF. Alternative methods for the factor analytic treatment of ipsative scores, with particular reference to the Edwards personal preference schedule / by Allan Frank Neil. [Internet] [Thesis]. Texas Christian University; 1973. [cited 2021 Mar 02]. Available from: https://repository.tcu.edu/handle/116099117/34688.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Neil AF. Alternative methods for the factor analytic treatment of ipsative scores, with particular reference to the Edwards personal preference schedule / by Allan Frank Neil. [Thesis]. Texas Christian University; 1973. Available from: https://repository.tcu.edu/handle/116099117/34688

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Michigan State University

15. Lange, Allan Lindsay. An empirical study of sampling error in factor analysis.

Degree: PhD, College of Education, 1969, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:18875

Subjects/Keywords: Factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lange, A. L. (1969). An empirical study of sampling error in factor analysis. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:18875

Chicago Manual of Style (16^th Edition):

Lange, Allan Lindsay. “An empirical study of sampling error in factor analysis.” 1969. Doctoral Dissertation, Michigan State University. Accessed March 02, 2021. http://etd.lib.msu.edu/islandora/object/etd:18875.

MLA Handbook (7^th Edition):

Lange, Allan Lindsay. “An empirical study of sampling error in factor analysis.” 1969. Web. 02 Mar 2021.

Vancouver:

Lange AL. An empirical study of sampling error in factor analysis. [Internet] [Doctoral dissertation]. Michigan State University; 1969. [cited 2021 Mar 02]. Available from: http://etd.lib.msu.edu/islandora/object/etd:18875.

Council of Science Editors:

Lange AL. An empirical study of sampling error in factor analysis. [Doctoral Dissertation]. Michigan State University; 1969. Available from: http://etd.lib.msu.edu/islandora/object/etd:18875

Michigan State University

16. Kiel, Donald Franklin. Effects upon the factorial solution of rotating varying numbers of factors with differing initial communality estimates.

Degree: MA, 1966, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:14914

Subjects/Keywords: Factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kiel, D. F. (1966). Effects upon the factorial solution of rotating varying numbers of factors with differing initial communality estimates. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:14914

Chicago Manual of Style (16^th Edition):

Kiel, Donald Franklin. “Effects upon the factorial solution of rotating varying numbers of factors with differing initial communality estimates.” 1966. Masters Thesis, Michigan State University. Accessed March 02, 2021. http://etd.lib.msu.edu/islandora/object/etd:14914.

MLA Handbook (7^th Edition):

Kiel, Donald Franklin. “Effects upon the factorial solution of rotating varying numbers of factors with differing initial communality estimates.” 1966. Web. 02 Mar 2021.

Vancouver:

Kiel DF. Effects upon the factorial solution of rotating varying numbers of factors with differing initial communality estimates. [Internet] [Masters thesis]. Michigan State University; 1966. [cited 2021 Mar 02]. Available from: http://etd.lib.msu.edu/islandora/object/etd:14914.

Council of Science Editors:

Kiel DF. Effects upon the factorial solution of rotating varying numbers of factors with differing initial communality estimates. [Masters Thesis]. Michigan State University; 1966. Available from: http://etd.lib.msu.edu/islandora/object/etd:14914

Michigan State University

17. Aleamoni, Lawrence M. An empirical exploration of three possible sources of factorial variation.

Degree: PhD, Department of Education, 1966, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:34375

Subjects/Keywords: Factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Aleamoni, L. M. (1966). An empirical exploration of three possible sources of factorial variation. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:34375

Chicago Manual of Style (16^th Edition):

Aleamoni, Lawrence M. “An empirical exploration of three possible sources of factorial variation.” 1966. Doctoral Dissertation, Michigan State University. Accessed March 02, 2021. http://etd.lib.msu.edu/islandora/object/etd:34375.

MLA Handbook (7^th Edition):

Aleamoni, Lawrence M. “An empirical exploration of three possible sources of factorial variation.” 1966. Web. 02 Mar 2021.

Vancouver:

Aleamoni LM. An empirical exploration of three possible sources of factorial variation. [Internet] [Doctoral dissertation]. Michigan State University; 1966. [cited 2021 Mar 02]. Available from: http://etd.lib.msu.edu/islandora/object/etd:34375.

Council of Science Editors:

Aleamoni LM. An empirical exploration of three possible sources of factorial variation. [Doctoral Dissertation]. Michigan State University; 1966. Available from: http://etd.lib.msu.edu/islandora/object/etd:34375

University of Edinburgh

18. Major, Jason. The dependability of the general factor of intelligence: Why g is not a first principal component.

Degree: 2010, University of Edinburgh

URL: http://hdl.handle.net/1842/5310

► In a replication of a psychometric study by Floyd, Shands, Rafael, Bergeron & McGrew (2009), generalizability theory was used to isolate and compare three different… (more)

Subjects/Keywords: general intelligence; factor analysis; factor loadings; generalizability theory; g factor

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Major, J. (2010). The dependability of the general factor of intelligence: Why g is not a first principal component. (Thesis). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/5310

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Major, Jason. “The dependability of the general factor of intelligence: Why g is not a first principal component.” 2010. Thesis, University of Edinburgh. Accessed March 02, 2021. http://hdl.handle.net/1842/5310.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Major, Jason. “The dependability of the general factor of intelligence: Why g is not a first principal component.” 2010. Web. 02 Mar 2021.

Vancouver:

Major J. The dependability of the general factor of intelligence: Why g is not a first principal component. [Internet] [Thesis]. University of Edinburgh; 2010. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/1842/5310.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Major J. The dependability of the general factor of intelligence: Why g is not a first principal component. [Thesis]. University of Edinburgh; 2010. Available from: http://hdl.handle.net/1842/5310

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

19. Mahan, Ellen Daly. Relating the Sensory and Rheological Properties of Personal Care Products .

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/11778

► To address a potential disconnect in directly comparing instrumental data to user acceptability, a proof-of-concept study was designed to demonstrate the importance of human perception… (more)

▼ To address a potential disconnect in directly comparing instrumental data to user acceptability, a proof-of-concept study was designed to demonstrate the importance of human perception in the realm of microbicide formulation. Physical properties of a sample can determine the success of a microbicide in terms of both acceptability of the product and drug delivery; understanding the relationship between acceptability and physical properties is a critical step in the rational design of microbicide products. However, acceptability data is affective and thus only reflects participant preferences for a product while instrumental data, though reliable and extensive, does not necessarily measure qualities that are relevant to human perception. Linking instrumental data and acceptability data often requires the additional step of quantifying human perception of product attributes. While the microbicide field is beginning to recognize the need for perceptual data, this step has already been filled and refined in the food and consumer product industry through descriptive analysis. To demonstrate a potential application of descriptive analysis to the microbicide field, a sample set of six over-the-counter vaginal products (Astroglide, PreSeed, KY, Replens, RepHresh, and Gynol) were subject to descriptive analysis, using a panel of 10 individuals, to quantify perceptual attributes and instrumental analysis, using a rheometer, to collect rheological data. Multivariate statistics were used to study relationships between the data sets. Analysis showed that Gynol was the most perceptually different sample while PreSeed was the most rheologically different sample in the set; but patterns corresponding to intended function of the products were found within both the rheological and sensory data. The indirect measurements of viscosity, G” at 10 rad/s and K, appeared to predict stickiness, rubberiness, peaking, and uniform thickness. However, strong relationships were not found between most rheological and sensory variables, meaning the most of the instrumental data collected either do not predict human perception of the sensory variables measured in this study or that they are incomplete measures of the underlying sensory constructs. Advisors/Committee Members: John E Hayes, Thesis Advisor/Co-Advisor, John E Hayes, Thesis Advisor/Co-Advisor.

Subjects/Keywords: descriptive analysis; rheology; sensory; multiple factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mahan, E. D. (2011). Relating the Sensory and Rheological Properties of Personal Care Products . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/11778

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mahan, Ellen Daly. “Relating the Sensory and Rheological Properties of Personal Care Products .” 2011. Thesis, Penn State University. Accessed March 02, 2021. https://submit-etda.libraries.psu.edu/catalog/11778.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mahan, Ellen Daly. “Relating the Sensory and Rheological Properties of Personal Care Products .” 2011. Web. 02 Mar 2021.

Vancouver:

Mahan ED. Relating the Sensory and Rheological Properties of Personal Care Products . [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Mar 02]. Available from: https://submit-etda.libraries.psu.edu/catalog/11778.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mahan ED. Relating the Sensory and Rheological Properties of Personal Care Products . [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/11778

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Minnesota

20. Walick, Christopher. A Proposed Algebra Problem-Analysis Model.

Degree: PhD, Educational Psychology, 2015, University of Minnesota

URL: http://hdl.handle.net/11299/175555

► The National Mathematics Advisory Panel (2008) states that algebra is a gateway to high school graduation and college success. While existing research emphasizes the importance… (more)

Subjects/Keywords: Algebra; Confirmatory Factor Analysis; Problem Analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Walick, C. (2015). A Proposed Algebra Problem-Analysis Model. (Doctoral Dissertation). University of Minnesota. Retrieved from http://hdl.handle.net/11299/175555

Chicago Manual of Style (16^th Edition):

Walick, Christopher. “A Proposed Algebra Problem-Analysis Model.” 2015. Doctoral Dissertation, University of Minnesota. Accessed March 02, 2021. http://hdl.handle.net/11299/175555.

MLA Handbook (7^th Edition):

Walick, Christopher. “A Proposed Algebra Problem-Analysis Model.” 2015. Web. 02 Mar 2021.

Vancouver:

Walick C. A Proposed Algebra Problem-Analysis Model. [Internet] [Doctoral dissertation]. University of Minnesota; 2015. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11299/175555.

Council of Science Editors:

Walick C. A Proposed Algebra Problem-Analysis Model. [Doctoral Dissertation]. University of Minnesota; 2015. Available from: http://hdl.handle.net/11299/175555

University of the Western Cape

21. Balogun, Tolulope Victoria. An intergrated model of the role of authentic leadership, psychological capital, psychological climate and intention to quit on employee work engagement: A comparative analysis .

Degree: 2017, University of the Western Cape

URL: http://hdl.handle.net/11394/6327

► Organizations exist for the primary aim of meeting particular objectives: innovation and advancement, customer satisfaction, profit making and delivery of quality goods and services. These… (more)

Subjects/Keywords: Authentic Leadership; Analysis of variance; Confirmatory Factor Analysis; Comparative Fit Index; Exploratory Factor Analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Balogun, T. V. (2017). An intergrated model of the role of authentic leadership, psychological capital, psychological climate and intention to quit on employee work engagement: A comparative analysis . (Thesis). University of the Western Cape. Retrieved from http://hdl.handle.net/11394/6327

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Balogun, Tolulope Victoria. “An intergrated model of the role of authentic leadership, psychological capital, psychological climate and intention to quit on employee work engagement: A comparative analysis .” 2017. Thesis, University of the Western Cape. Accessed March 02, 2021. http://hdl.handle.net/11394/6327.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Balogun, Tolulope Victoria. “An intergrated model of the role of authentic leadership, psychological capital, psychological climate and intention to quit on employee work engagement: A comparative analysis .” 2017. Web. 02 Mar 2021.

Vancouver:

Balogun TV. An intergrated model of the role of authentic leadership, psychological capital, psychological climate and intention to quit on employee work engagement: A comparative analysis . [Internet] [Thesis]. University of the Western Cape; 2017. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11394/6327.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Balogun TV. An intergrated model of the role of authentic leadership, psychological capital, psychological climate and intention to quit on employee work engagement: A comparative analysis . [Thesis]. University of the Western Cape; 2017. Available from: http://hdl.handle.net/11394/6327

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Ohio State University

22. Sanders, Margaret. Multifactor Models of Ordinal Data: Comparing Four Factor Analytical Methods.

Degree: MA, EDU Policy and Leadership, 2014, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1388745127

► In education research, ordinal data is the norm but does not meet the assumptions of most statistical methods and thus is often analyzed inappropriately. Using… (more)

▼ In education research, ordinal data is the norm but does not meet the assumptions of most statistical methods and thus is often analyzed inappropriately. Using a dataset typical of the field, this study compared four factor analytic methods: a traditional exploratory factor analysis (EFA), a full-information EFA, and two EFAs within the confirmatory factor analysis framework (E/CFA) conducted according to the Jöreskog method and the Gugiu method. Because an approach for handling cross-loaded items in multifactor models has not been clearly defined within the Gugiu method, two approaches were compared. The fixed-loadings approach involves forcing cross-loaded items to load onto only one factor, chosen based on the strongest theoretical justification. The delete-items approach deletes all cross-loaded items from the model. Both approaches were used to arrive at a starting model that was then modified according to the Gugiu method. Methods were compared on initial model fit, replication in a confirmatory factor analysis, and the stability, interpretability, and reliability of the models. In terms of initial model fit, methods appropriate for ordinal data produced better models, the E/CFAs outperformed the EFAs, and the Gugiu method demonstrated greater model interpretability than the Jöreskog method. Both approaches to the Gugiu method produced well-fitting models, but the delete-items approach outperformed the fixed-loadings approach. However, contrary to the findings of a previous study, these results did not hold for model validation. In CFAs conducted on posttest data, the model fit of the E/CFAs was on par with or worse than the model fit of the EFAs. Additionally, the two approaches to the Gugiu method performed the worst where before they had performed the best, with the fixed-loadings approach faring particularly poorly. In the case of this data, the full-information EFA produced the best fitting models.Examining characteristics of the data help to explain the unexpectedly poor performance of the E/CFA methods and help to clarify when these methods are appropriate to use. Diagonal weighted least squares (DWLS), the method of estimation employed by the full-information EFA and the two E/CFAs, may produce biased parameter estimates when used with small sample sizes, with factors defined by only a few items, and with items with high skewness. These biased parameter estimates are even more problematic when used to make model modification decisions, as they were for the Jöreskog and Gugiu E/CFA methods. Thus, the results of the current study suggest that the full-information EFA may be the most appropriate method to use with data with these problematic characteristics. Secondarily, the findings also provide evidence for the delete-items approach as the more appropriate way of dealing with cross-loaded items in the Gugiu E/CFA method. Advisors/Committee Members: Gugiu, P. Cristian (Advisor).

Subjects/Keywords: Educational Tests and Measurements; Psychological Tests; exploratory factor analysis; confirmatory factor analysis; ordinal data analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sanders, M. (2014). Multifactor Models of Ordinal Data: Comparing Four Factor Analytical Methods. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1388745127

Chicago Manual of Style (16^th Edition):

Sanders, Margaret. “Multifactor Models of Ordinal Data: Comparing Four Factor Analytical Methods.” 2014. Masters Thesis, The Ohio State University. Accessed March 02, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1388745127.

MLA Handbook (7^th Edition):

Sanders, Margaret. “Multifactor Models of Ordinal Data: Comparing Four Factor Analytical Methods.” 2014. Web. 02 Mar 2021.

Vancouver:

Sanders M. Multifactor Models of Ordinal Data: Comparing Four Factor Analytical Methods. [Internet] [Masters thesis]. The Ohio State University; 2014. [cited 2021 Mar 02]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1388745127.

Council of Science Editors:

Sanders M. Multifactor Models of Ordinal Data: Comparing Four Factor Analytical Methods. [Masters Thesis]. The Ohio State University; 2014. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1388745127

University of the Western Cape

23. Mosavel, Haajierah. Petrophysical characterization of sandstone reservoirs through boreholes E-S3, E-S5 and F-AH4 using multivariate statistical techniques and seismic facies in the Central Bredasdorp Basin .

Degree: 2014, University of the Western Cape

URL: http://hdl.handle.net/11394/3984

► The thesis aims to determine the depositional environments, rock types and petrophysical characteristics of the reservoirs in Wells E-S3, E-S5 and F-AH4 of Area X… (more)

Subjects/Keywords: Porosity; Permeability; Multivariate analysis; Factor analysis; Discriminant analysis; Cluster analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mosavel, H. (2014). Petrophysical characterization of sandstone reservoirs through boreholes E-S3, E-S5 and F-AH4 using multivariate statistical techniques and seismic facies in the Central Bredasdorp Basin . (Thesis). University of the Western Cape. Retrieved from http://hdl.handle.net/11394/3984

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mosavel, Haajierah. “Petrophysical characterization of sandstone reservoirs through boreholes E-S3, E-S5 and F-AH4 using multivariate statistical techniques and seismic facies in the Central Bredasdorp Basin .” 2014. Thesis, University of the Western Cape. Accessed March 02, 2021. http://hdl.handle.net/11394/3984.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mosavel, Haajierah. “Petrophysical characterization of sandstone reservoirs through boreholes E-S3, E-S5 and F-AH4 using multivariate statistical techniques and seismic facies in the Central Bredasdorp Basin .” 2014. Web. 02 Mar 2021.

Vancouver:

Mosavel H. Petrophysical characterization of sandstone reservoirs through boreholes E-S3, E-S5 and F-AH4 using multivariate statistical techniques and seismic facies in the Central Bredasdorp Basin . [Internet] [Thesis]. University of the Western Cape; 2014. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/11394/3984.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mosavel H. Petrophysical characterization of sandstone reservoirs through boreholes E-S3, E-S5 and F-AH4 using multivariate statistical techniques and seismic facies in the Central Bredasdorp Basin . [Thesis]. University of the Western Cape; 2014. Available from: http://hdl.handle.net/11394/3984

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

24. Lin, Wan-ru. Macroeconomic multi factor forecasting model in Taiwan.

Degree: Master, Finance, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0610112-212627

► This purpose behind this study is to develop a model for forecasting the performance of the Taiwanese economy based on monthly time series data. We… (more)

Subjects/Keywords: factor model; financial crisis; economic growth; business cycle; forecasting; macroeconomic factor model; factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lin, W. (2012). Macroeconomic multi factor forecasting model in Taiwan. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0610112-212627

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lin, Wan-ru. “Macroeconomic multi factor forecasting model in Taiwan.” 2012. Thesis, NSYSU. Accessed March 02, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0610112-212627.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lin, Wan-ru. “Macroeconomic multi factor forecasting model in Taiwan.” 2012. Web. 02 Mar 2021.

Vancouver:

Lin W. Macroeconomic multi factor forecasting model in Taiwan. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 02]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0610112-212627.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lin W. Macroeconomic multi factor forecasting model in Taiwan. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0610112-212627

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of British Columbia

25. Wu, Amery Dai Ling. Pratt's importance measures in factor analysis : a new technique for interpreting oblique factor models.

Degree: PhD, Measurement, Evaluation and Research Methodology, 2008, University of British Columbia

URL: http://hdl.handle.net/2429/2333

► This dissertation introduces a new method, Pratt's measure matrix, for interpreting multidimensional oblique factor models in both exploratory and confirmatory contexts. Overall, my thesis, supported… (more)

▼ This dissertation introduces a new method, Pratt's measure matrix, for interpreting multidimensional oblique factor models in both exploratory and confirmatory contexts. Overall, my thesis, supported by empirical evidence, refutes the currently recommended and practiced methods for understanding an oblique factor model; that is, interpreting the pattern matrix or structure matrix alone or juxtaposing both without integrating the information. Chapter Two reviews the complexities of interpreting a multidimensional factor solution due to factor correlation (i.e., obliquity). Three major complexities highlighted are (1) the inconsistency between the pattern and structure coefficients, (2) the distortion of additive properties, and (3) the inappropriateness of the traditional cut-off rules as being "meaningful". Chapter Three provides the theoretical rationale for adapting Pratt's importance measures from their use in multiple regression to that of factor analysis. The new method is demonstrated and tested with both continuous and categorical data in exploratory factor analysis. The results show that Pratt's measures are applicable to factor analysis and are able to resolve three interpretational complexities arising from factor obliquity. In the context of confirmatory factor analysis, Chapter Four warns researchers that a structure coefficient could be entirely spurious due to factor obliquity as well as zero constraint on its corresponding pattern coefficient. Interpreting such structure coefficients as Graham et al. (2003) suggested can be problematic. The mathematically more justified method is to transform the pattern and structure coefficients into Pratt's measures. The last chapter describes eight novel contributions in this dissertation. The new method is the first attempt ever at ordering the importance of latent variables for multivariate data. It is also the first attempt at demonstrating and explicating the existence, mechanism, and implications of the suppression effect in factor analyses. Specifically, the new method resolves the three interpretational problems due to factor obliquity, assists in identifying a better-fitting exploratory factor model, proves that a structure coefficient in a confirmatory factor analysis with a zero pattern constraint is entirely spurious, avoids the debate over the choice of oblique and orthogonal factor rotation, and last but not least, provides a tool for consolidating the role off actors as the underlying causes.

Subjects/Keywords: Factor models; Factor analysis; Oblique factor

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wu, A. D. L. (2008). Pratt's importance measures in factor analysis : a new technique for interpreting oblique factor models. (Doctoral Dissertation). University of British Columbia. Retrieved from http://hdl.handle.net/2429/2333

Chicago Manual of Style (16^th Edition):

Wu, Amery Dai Ling. “Pratt's importance measures in factor analysis : a new technique for interpreting oblique factor models.” 2008. Doctoral Dissertation, University of British Columbia. Accessed March 02, 2021. http://hdl.handle.net/2429/2333.

MLA Handbook (7^th Edition):

Wu, Amery Dai Ling. “Pratt's importance measures in factor analysis : a new technique for interpreting oblique factor models.” 2008. Web. 02 Mar 2021.

Vancouver:

Wu ADL. Pratt's importance measures in factor analysis : a new technique for interpreting oblique factor models. [Internet] [Doctoral dissertation]. University of British Columbia; 2008. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/2429/2333.

Council of Science Editors:

Wu ADL. Pratt's importance measures in factor analysis : a new technique for interpreting oblique factor models. [Doctoral Dissertation]. University of British Columbia; 2008. Available from: http://hdl.handle.net/2429/2333

Georgia State University

26. Taylor, Rachel Y. Structural Validity Evidence of the Wechsler Intelligence Scale for Children- Fifth Edition with African-American Students who have been Referred for Evaluation.

Degree: PhD, Educational Policy Studies, 2019, Georgia State University

URL: https://scholarworks.gsu.edu/eps_diss/211

► The Wechsler Intelligence Scale for Children- Fifth Edition (WISC-V; Wechsler, 2014) is expected to be the most widely used measure of intelligence of school… (more)

▼ The Wechsler Intelligence Scale for Children- Fifth Edition (WISC-V; Wechsler, 2014) is expected to be the most widely used measure of intelligence of school aged children in the United States for at least the next ten years. Results of this assessment are used to make decisions about students' educational placements. Evidence of structural validity of previous versions of the Wechsler scales with subjects who have been referred for evaluation due to a suspected disability was rarely examined. Only six studies focused on evidence of structural validity of the Wechsler Intelligence Scale for Children- Fourth Edition with referred samples, during its reign as the leading measure of intelligence for over a decade. In five of those studies, researchers employed confirmatory factor analysis, while exploratory factor analysis was employed in one study. In this study, I investigated the factor structure and measurement invariance of the WISC-V with students who had been referred for evaluation because of academic and/or behavioral difficulties. Participants were African-American students in one urban school district in the southeastern United States who were administered the WISC-V during the 2015-2017 school years. Confirmatory factor analysis was conducted using Mplus version 7.4 to determine whether the referred sample’s data fit the 10 primary subtest structural model that is published in the WISC-V Technical and Interpretive Manual (Wechsler, 2014). Results indicated that the best fitting structural model was the four-factor hierarchical model, not the five-factor hierarchical model that the publishers endorse. Measurement invariance of the WISC-V between genders was also investigated using Mplus version 7.4. Invariance between genders was confirmed with the four-factor model. The five-factor model of the female sample’s data would not converge, which suggested measurement variance between genders or one of several other problems commonly associated with small sample sizes and large numbers of parameters to estimate. Interpretation of the WISC-V should be based on the Full Scale IQ only. Recommendations for future research were offered. Advisors/Committee Members: Charles Kevin Fortner, Ph.D., William Curlette, Ph.D., Hongli Li, Ph.D., Tiffany Hogan, Ph.D..

Subjects/Keywords: confirmatory factor analysis; structural validity; intelligence tests; factor loadings

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Taylor, R. Y. (2019). Structural Validity Evidence of the Wechsler Intelligence Scale for Children- Fifth Edition with African-American Students who have been Referred for Evaluation. (Doctoral Dissertation). Georgia State University. Retrieved from https://scholarworks.gsu.edu/eps_diss/211

Chicago Manual of Style (16^th Edition):

Taylor, Rachel Y. “Structural Validity Evidence of the Wechsler Intelligence Scale for Children- Fifth Edition with African-American Students who have been Referred for Evaluation.” 2019. Doctoral Dissertation, Georgia State University. Accessed March 02, 2021. https://scholarworks.gsu.edu/eps_diss/211.

MLA Handbook (7^th Edition):

Taylor, Rachel Y. “Structural Validity Evidence of the Wechsler Intelligence Scale for Children- Fifth Edition with African-American Students who have been Referred for Evaluation.” 2019. Web. 02 Mar 2021.

Vancouver:

Taylor RY. Structural Validity Evidence of the Wechsler Intelligence Scale for Children- Fifth Edition with African-American Students who have been Referred for Evaluation. [Internet] [Doctoral dissertation]. Georgia State University; 2019. [cited 2021 Mar 02]. Available from: https://scholarworks.gsu.edu/eps_diss/211.

Council of Science Editors:

Taylor RY. Structural Validity Evidence of the Wechsler Intelligence Scale for Children- Fifth Edition with African-American Students who have been Referred for Evaluation. [Doctoral Dissertation]. Georgia State University; 2019. Available from: https://scholarworks.gsu.edu/eps_diss/211

Heriot-Watt University

27. Hamani, Karima. Developing a corporate sustainability performance evaluation model of the UAE construction contractors.

Degree: PhD, 2019, Heriot-Watt University

URL: http://hdl.handle.net/10399/4209

► It is widely accepted that construction project success correlates positively with contractors’ qualifications, including their sustainability performance; this performance has to be measured to inform… (more)

▼ It is widely accepted that construction project success correlates positively with contractors’ qualifications, including their sustainability performance; this performance has to be measured to inform clients’ decisions during contractor prequalification and selection. While a significant number of sustainability evaluation systems has been developed at the project level, limited research and practice exists in sustainability evaluation of construction organisations including contracting companies. In the UAE, the accelerated policy-making process and sustainability movement represent both an opportunity to accelerate the change, and a challenge for construction companies to adapt to this change in an efficient and effective way. Clients in the UAE are thus in urgent need of selecting the right contractor for successful delivery of their sustainable projects and for design of their sustainable supply chain. The main aim of this study is to develop a multi-criteria evaluation model of the UAE construction contractors based on their sustainability performance. This study undertakes a critical review of existing corporate sustainability standards and similar studies. The existing criteria suggested by previous studies are reviewed, cross-referenced and categorised to compose a conceptual framework for the model. The model criteria and domains are then validated and updated through expert interviews followed by expert survey. The updated model is further refined and validated through exploratory and confirmatory factor analyses of the main contractors’ questionnaire survey. First order, second order and bifactor models for the five domains have been evaluated and contrasted prior to the assessment of higher-order models. Factor analysis results reveal a poor fit of the multi-scale third-order models and suggest the adoption of ‘independent’ bifactor models for five performance evaluation scales namely: 1) policy and governance, 2) corporate workplace, 3) management of employees, 4) procurement and supply chain and 5) project delivery. The present study contributes to the academic fields of corporate sustainable construction and scale development. In practice, the developed model can be adopted by local authorities as a sustainability classification system for contractors. It can also be used by clients as a supporting decision-making tool during the prequalification stage and as part of their sustainable supply chain design. The evaluation model can also help contractors track and benchmark their performance and provide clear evidence of their sustainability performance and identify areas of necessary improvement.

Subjects/Keywords: Corporate; sustainability; performance; scale; bi-factor; factor analysis; construction contractors; UAE

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hamani, K. (2019). Developing a corporate sustainability performance evaluation model of the UAE construction contractors. (Doctoral Dissertation). Heriot-Watt University. Retrieved from http://hdl.handle.net/10399/4209

Chicago Manual of Style (16^th Edition):

Hamani, Karima. “Developing a corporate sustainability performance evaluation model of the UAE construction contractors.” 2019. Doctoral Dissertation, Heriot-Watt University. Accessed March 02, 2021. http://hdl.handle.net/10399/4209.

MLA Handbook (7^th Edition):

Hamani, Karima. “Developing a corporate sustainability performance evaluation model of the UAE construction contractors.” 2019. Web. 02 Mar 2021.

Vancouver:

Hamani K. Developing a corporate sustainability performance evaluation model of the UAE construction contractors. [Internet] [Doctoral dissertation]. Heriot-Watt University; 2019. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10399/4209.

Council of Science Editors:

Hamani K. Developing a corporate sustainability performance evaluation model of the UAE construction contractors. [Doctoral Dissertation]. Heriot-Watt University; 2019. Available from: http://hdl.handle.net/10399/4209

28. Yada, Koji; Nogami, Keiji; Ogiwara, Kenichi. Activated prothrombin complex concentrate (APCC)-mediated activation of factor (F)VIII in mixtures of FVIII and APCC enhances hemostatic effectiveness.

Degree: 博士（医学）, 2013, Nara Medical University / 奈良県立医科大学

URL: http://hdl.handle.net/10564/2635

►

BACKGROUND AND OBJECTIVES: Activated prothrombin complex concentrates (APCCs), utilized in bypassing therapy for hemophiliacs with inhibitor, contain factors (Fs) VII, FII, FIX and FX, and… (more)

Subjects/Keywords: activation analysis;

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Yada, Koji; Nogami, Keiji; Ogiwara, K. (2013). Activated prothrombin complex concentrate (APCC)-mediated activation of factor (F)VIII in mixtures of FVIII and APCC enhances hemostatic effectiveness. (Thesis). Nara Medical University / 奈良県立医科大学. Retrieved from http://hdl.handle.net/10564/2635

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yada, Koji; Nogami, Keiji; Ogiwara, Kenichi. “Activated prothrombin complex concentrate (APCC)-mediated activation of factor (F)VIII in mixtures of FVIII and APCC enhances hemostatic effectiveness.” 2013. Thesis, Nara Medical University / 奈良県立医科大学. Accessed March 02, 2021. http://hdl.handle.net/10564/2635.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yada, Koji; Nogami, Keiji; Ogiwara, Kenichi. “Activated prothrombin complex concentrate (APCC)-mediated activation of factor (F)VIII in mixtures of FVIII and APCC enhances hemostatic effectiveness.” 2013. Web. 02 Mar 2021.

Vancouver:

Yada, Koji; Nogami, Keiji; Ogiwara K. Activated prothrombin complex concentrate (APCC)-mediated activation of factor (F)VIII in mixtures of FVIII and APCC enhances hemostatic effectiveness. [Internet] [Thesis]. Nara Medical University / 奈良県立医科大学; 2013. [cited 2021 Mar 02]. Available from: http://hdl.handle.net/10564/2635.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yada, Koji; Nogami, Keiji; Ogiwara K. Activated prothrombin complex concentrate (APCC)-mediated activation of factor (F)VIII in mixtures of FVIII and APCC enhances hemostatic effectiveness. [Thesis]. Nara Medical University / 奈良県立医科大学; 2013. Available from: http://hdl.handle.net/10564/2635

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

29. Lin, Yu-chun. Waterï¼soluble ions in atmospheric aerosols in Kaohsiung coast.

Degree: Master, Marine Environment and Engineering, 2016, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0518116-151934

► The aim of this study is to explore the concentrations of atmospheric aerosol and the characteristics of water-soluble ions in the coastal area of Kaohsiung.… (more)

▼ The aim of this study is to explore the concentrations of atmospheric aerosol and the characteristics of water-soluble ions in the coastal area of Kaohsiung. The sampling station was established on the top of the building of the Department of Marine Environment and Engineering, National Sun Yat-sen University. Air samples were collect by an air sampling pump with PS-1 high flow from March 2012 to March 2013. Analysis of the elements of water-soluble ions is used to understand the seasonal correlation between the concentration of total particulate matter and water-soluble ions. Diurnal variation of total particulate matter concentrations showed the concentration at night is higher than daytime. Seasonal variations showed the highest concentration of total particulate matter observed in witner and the lowest observed in summer. For soluble ions, Cl-, Na+ and Mg2+ displayed higher concentrations during daytime, while the concentrations of SO42- and NO3- were higher at night. The diurnal variation of particulate matter is related to land-sea circulation as the geographical characteristics of the sampling site. Particulate matter can be transported from the inland city to the coastal area during the night as the wind direction is easterly or northeasterly direction. The secondary inorganic aerosols (SIA) were dominant soluble ions of the total particulate matter in Kaohsiung; SO42-, NO3- and NH4+ account for 60% of total soluble ions, most of them found in fall, winter and spring. The ratio of [NO3-]/[SO42-] during day and night is about 0.83 implied that the sampling site affected by stationary sources on the total particulate matter more than mobile sources. Because the sampling station is close to the harbor, the emission and combustion of sulphur-containing fuel may result in higher SO42- concentrations than the other elements. The results of the enrichment factor analysis revealed that ions of Na+, Cl- and Mg2+ on particulate matter are mostly caused by the marine spray; and SO42-, K+ and Ca2+ could be attributed to human activities (stationary pollutant sources, biomass burning and construction), as well as crustal elements. The mean of chloride deficit is approximately 51.3% with no significant difference between day and night. Advisors/Committee Members: li-Jyur Tsai (chair), Yi-Chu Huang (chair), Chon-Lin Lee (committee member).

Subjects/Keywords: TSP; water-soluble ions; enrichment factor analysis

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lin, Y. (2016). Waterï¼soluble ions in atmospheric aerosols in Kaohsiung coast. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0518116-151934

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lin, Yu-chun. “Waterï¼soluble ions in atmospheric aerosols in Kaohsiung coast.” 2016. Thesis, NSYSU. Accessed March 02, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0518116-151934.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lin, Yu-chun. “Waterï¼soluble ions in atmospheric aerosols in Kaohsiung coast.” 2016. Web. 02 Mar 2021.

Vancouver:

Lin Y. Waterï¼soluble ions in atmospheric aerosols in Kaohsiung coast. [Internet] [Thesis]. NSYSU; 2016. [cited 2021 Mar 02]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0518116-151934.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lin Y. Waterï¼soluble ions in atmospheric aerosols in Kaohsiung coast. [Thesis]. NSYSU; 2016. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0518116-151934

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

UCLA

30. Schweig, Jonathan David. Multilevel Factor Analysis and Student Ratings of Instructional Practice.

Degree: Education, 2014, UCLA

URL: http://www.escholarship.org/uc/item/9t03w2hc

► Student surveys of classroom climate can provide teachers and researchers with valuable information about instruction. These surveys are becoming a critical component in policy efforts… (more)

▼ Student surveys of classroom climate can provide teachers and researchers with valuable information about instruction. These surveys are becoming a critical component in policy efforts to assess and improve teaching. Advocates note that students are natural observers of their classroom environments, have extensive and rich knowledge of their teachers, and that student ratings of teacher practice can be predictive of important outcomes, such as student academic and socio-emotional development. Inferences about a teacher's instructional practice are often based on aggregated student survey responses, and a key step in assessing the appropriate uses of the information collected from student surveys is to understand the dimensions of classroom climate or instructional practice that are discernible when looking at student responses aggregated by classroom. This dissertation proposes a new approach for exploring the dimensionality of aggregated student ratings. This approach also has the potential to provide validity evidence supporting the use of student surveys as measures of instructional practice in both formative and summative evaluation. Specifically, this dissertation applies a non-parametric cluster bootstrap technique to a multilevel covariance structure analysis framework that allows researchers to evaluate and investigate psychometric models when data is collected from students and teachers are the objects of measurement. This approach is extended to applications where teachers are clustered within schools. The cluster bootstrap technique is demonstrated on a realistic dataset to illustrate how the methods may be used to investigate the dimensions of teacher professional practice that are discernible on a state-wide student survey of instructional practice. The results of this dissertation demonstrate that the proposed cluster bootstrap technique can be used in conjunction with maximum likelihood estimation to yield accurate parameter estimates, and that for sufficiently large sample sizes, test statistics and standard errors based on the cluster bootstrap technique will yield valid inferences about the psychometric properties of aggregated survey responses.

Subjects/Keywords: Education; Factor analysis; Multilevel; student surveys

Record Details Similar Records Cite « Share

❌

APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Schweig, J. D. (2014). Multilevel Factor Analysis and Student Ratings of Instructional Practice. (Thesis). UCLA. Retrieved from http://www.escholarship.org/uc/item/9t03w2hc

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Schweig, Jonathan David. “Multilevel Factor Analysis and Student Ratings of Instructional Practice.” 2014. Thesis, UCLA. Accessed March 02, 2021. http://www.escholarship.org/uc/item/9t03w2hc.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Schweig, Jonathan David. “Multilevel Factor Analysis and Student Ratings of Instructional Practice.” 2014. Web. 02 Mar 2021.

Vancouver:

Schweig JD. Multilevel Factor Analysis and Student Ratings of Instructional Practice. [Internet] [Thesis]. UCLA; 2014. [cited 2021 Mar 02]. Available from: http://www.escholarship.org/uc/item/9t03w2hc.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Schweig JD. Multilevel Factor Analysis and Student Ratings of Instructional Practice. [Thesis]. UCLA; 2014. Available from: http://www.escholarship.org/uc/item/9t03w2hc

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

		in
And / Or
		in
And / Or
		in
And / Or
		in

Open Access Theses and Dissertations