Statistical Analysis of Questionnaires: A Unified Approach Based on R and Stata

This book follows a well established approach to the psychometric analysis of questionnaire data as found in educational, survey and medical research. The authors provide an in-depth discussion of the analysis of score reliability and item properties grounded in classical test theory (CTT), and of the probabilistic modeling of individual responses based on latent variable models. The R and Stata statistical packages are used to illustrate these different steps.