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Raykov, Tenko; Marcoulides, George A.; Dimitrov, Dimiter M.; Li, Tatyana – Educational and Psychological Measurement, 2018
This article extends the procedure outlined in the article by Raykov, Marcoulides, and Tong for testing congruence of latent constructs to the setting of binary items and clustering effects. In this widely used setting in contemporary educational and psychological research, the method can be used to examine if two or more homogeneous…
Descriptors: Tests, Psychometrics, Test Items, Construct Validity
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Dimitrov, Dimiter M. – Educational and Psychological Measurement, 2016
This article describes an approach to test scoring, referred to as "delta scoring" (D-scoring), for tests with dichotomously scored items. The D-scoring uses information from item response theory (IRT) calibration to facilitate computations and interpretations in the context of large-scale assessments. The D-score is computed from the…
Descriptors: Scoring, Equated Scores, Test Items, Measurement
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Dimitrov, Dimiter M.; Raykov, Tenko; AL-Qataee, Abdullah Ali – Educational and Psychological Measurement, 2015
This article is concerned with developing a measure of general academic ability (GAA) for high school graduates who apply to colleges, as well as with the identification of optimal weights of the GAA indicators in a linear combination that yields a composite score with maximal reliability and maximal predictive validity, employing the framework of…
Descriptors: Foreign Countries, Academic Ability, Aptitude Tests, High School Students