Biomaterial Database

Applications of generalizability theory and their relations to classical test theory and structural equation modeling. 2018

Walter P Vispoel, and Carrie A Morris, and Murat Kilinc

Department of Psychological and Quantitative Foundations, University of Iowa.

Although widely recognized as a comprehensive framework for representing score reliability, generalizability theory (G-theory), despite its potential benefits, has been used sparingly in reporting of results for measures of individual differences. In this article, we highlight many valuable ways that G-theory can be used to quantify, evaluate, and improve psychometric properties of scores. Our illustrations encompass assessment of overall reliability, percentages of score variation accounted for by individual sources of measurement error, dependability of cut-scores for decision making, estimation of reliability and dependability for changes made to measurement procedures, disattenuation of validity coefficients for measurement error, and linkages of G-theory with classical test theory and structural equation modeling. We also identify computer packages for performing G-theory analyses, most of which can be obtained free of charge, and describe how they compare with regard to data input requirements, ease of use, complexity of designs supported, and output produced. (PsycINFO Database Record

UI	MeSH Term	Description	Entries
D008962	Models, Theoretical	Theoretical representations that simulate the behavior or activity of systems, processes, or phenomena. They include the use of mathematical equations, computers, and other electronic equipment.	Experimental Model,Experimental Models,Mathematical Model,Model, Experimental,Models (Theoretical),Models, Experimental,Models, Theoretic,Theoretical Study,Mathematical Models,Model (Theoretical),Model, Mathematical,Model, Theoretical,Models, Mathematical,Studies, Theoretical,Study, Theoretical,Theoretical Model,Theoretical Models,Theoretical Studies
D011582	Psychological Theory	Principles applied to the analysis and explanation of psychological or behavioral phenomena.	Social Cognitive Theory,Psychologic Theory,Psychological Theories,Theories, Psychological,Theory, Psychological,Cognitive Theories, Social,Cognitive Theory, Social,Psychologic Theories,Social Cognitive Theories,Theories, Psychologic,Theories, Social Cognitive,Theory, Psychologic,Theory, Social Cognitive
D011584	Psychology	The science dealing with the study of mental processes and behavior in man and animals.	Factors, Psychological,Psychological Factors,Psychological Side Effects,Psychologists,Psychosocial Factors,Side Effects, Psychological,Factor, Psychological,Factor, Psychosocial,Factors, Psychosocial,Psychological Factor,Psychological Side Effect,Psychologist,Psychosocial Factor,Side Effect, Psychological
D011594	Psychometrics	Assessment of psychological variables by the application of mathematical procedures.	Psychometric
D012107	Research Design	A plan for collecting and utilizing data so that desired information can be obtained with sufficient precision or so that an hypothesis can be tested properly.	Experimental Design,Data Adjustment,Data Reporting,Design, Experimental,Designs, Experimental,Error Sources,Experimental Designs,Matched Groups,Methodology, Research,Problem Formulation,Research Methodology,Research Proposal,Research Strategy,Research Technics,Research Techniques,Scoring Methods,Adjustment, Data,Adjustments, Data,Data Adjustments,Design, Research,Designs, Research,Error Source,Formulation, Problem,Formulations, Problem,Group, Matched,Groups, Matched,Matched Group,Method, Scoring,Methods, Scoring,Problem Formulations,Proposal, Research,Proposals, Research,Reporting, Data,Research Designs,Research Proposals,Research Strategies,Research Technic,Research Technique,Scoring Method,Source, Error,Sources, Error,Strategies, Research,Strategy, Research,Technic, Research,Technics, Research,Technique, Research,Techniques, Research
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man