Quantitative Psychology Commons^™

Investigating The Fit Of The Generalized Graded Unfolding Model (Ggum) When Calibrated To Irt Generated Data From Dominance And Ideal Point Models, Abdulla Alzarouni

College of Education and Human Sciences: Dissertations, Theses, and Student Research

The assessment of model fit in latent trait modelling, better known as item response theory (IRT), is an integral part of model testing if one is to make valid inferences about the estimated parameters and their properties based on the selected IRT model. Though important, the assessment of model fit has been less utilized in IRT research than it should. For example, there have been less research investigating fit for polytomous dominance models such the Graded Response Model (GRM), and to a lesser extent ideal point models such as the Generalized Graded Unfolding Models (GGUM), both in its dichotomous and …

Calendar Interviewing And The Use Of Landmark Events – Implications For Cross-Cultural Surveys, Tina Glasner, Wander Van Der Vaart, Robert F. Belli

Department of Psychology: Faculty Publications

This paper discusses potential methodological issues in the design and implementation of calendar recall aids such as the Life History Calendar for cross-cultural surveys. More specifically, it aims to provide insights into how the use of landmark events in calendar interviewing may be influenced by cross-cultural variability. As an example, we compare the landmark events reported by Dutch and American respondents in two studies in which calendar recall aids were used. The study discusses differences that were found between the two countries in the numbers and types of reported landmark events, as well as in the temporal distribution of those …

A Preliminary Study: Body Dysmorphic Disorder In Division I Women’S Collegiate Soccer Players, Tammy D. Jones

Department of Educational Administration: Dissertations, Theses, and Student Research

The prevalence of Body Dysmorphic Disorder (BDD) among collegiate athletes has not been clearly determined. The purpose of this study was to determine if there are symptoms of body dysmorphic disorder found in Division I women’s soccer players. The researcher hypothesized that there would be some symptoms found within the participants of sport and that there was a need to research this area further.

The study consisted of four participants who participated in semi-structured interviews. The subjects were asked a series of questions from the Yale-Brown Obsessive Compulsive Scale Modified for Body Dysmorphic Disorder (BDD-YBOCS) to determine if they indicated …