Voskuilen, Chelsea E.
Models of Decision-Making.
Degree: PhD, Psychology, 2017, The Ohio State University
This dissertation consists of a collection of projects
on the modeling of decision-making. The first chapter describes
three of the most popular models of decision-making and presents
fits of these models to a large collection of datasets. While all
three of the models provide reasonable fits to the data, there is
only moderate agreement between the model parameters and some of
the models’ parameters are not well recovered. The second chapter
describes a particular pattern of results that is observed in tasks
with two stimuli (a pattern that is not observable in tasks with
decisions involving a single stimulus) and presents two ways of
modeling this pattern of results. The third chapter was originally
published as an article in the Journal of Mathematical Psychology
in 2016. This chapter investigates whether a diffusion model with
collapsing boundaries provides a better account of human data than
a model with fixed boundaries. Overall, a diffusion model with
decision boundaries that converge over time was not found to
provide an improvement over the standard diffusion model. The
fourth chapter is in-press as an article in the Journal of
Experimental Psychology: Learning, Memory, and Cognition. In this
article, I examined the effects of aging on performance in an
item-recognition experiment with confidence judgments. In this
task, older adults took longer to respond than younger adults,
older adults exhibited a small decrease in evidence from memory
compared to younger adults and a slight bias towards judging items
as `old’. The difference in response times between the two age
groups was primarily explained by the difference in the
non-decision component of the model. These results are consistent
with other research examining the effects of aging in two-choice
response time tasks and response-signal tasks, and the study
demonstrates that confidence judgment choice proportion and
response time distribution data from older adults can be fit with
the RTCON2 model. The fifth chapter is in-press as an invited book
chapter in the reference book Learning and Memory: A Comprehensive
Reference 2E (Ed. John Wixted). This chapter provides a basic
description of the diffusion model and offers examples of how this
type of modeling approach has been applied in a variety of memory
domains to provide additional insight above and beyond
behavioral-only or signal-detection based approaches.
Advisors/Committee Members: Ratcliff, Roger (Advisor).
Subjects/Keywords: Psychology; Cognitive Psychology; psychology, models of decision-making
to Zotero / EndNote / Reference
APA (6th Edition):
Voskuilen, C. E. (2017). Models of Decision-Making. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1493980931635752
Chicago Manual of Style (16th Edition):
Voskuilen, Chelsea E. “Models of Decision-Making.” 2017. Doctoral Dissertation, The Ohio State University. Accessed December 18, 2017.
MLA Handbook (7th Edition):
Voskuilen, Chelsea E. “Models of Decision-Making.” 2017. Web. 18 Dec 2017.
Voskuilen CE. Models of Decision-Making. [Internet] [Doctoral dissertation]. The Ohio State University; 2017. [cited 2017 Dec 18].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1493980931635752.
Council of Science Editors:
Voskuilen CE. Models of Decision-Making. [Doctoral Dissertation]. The Ohio State University; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1493980931635752