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Direct linkSideridis, Georgios D.; Tsaousis, Ioannis; Al-Sadaawi, Abdullah – Educational and Psychological Measurement, 2019
The purpose of the present study was to apply the methodology developed by Raykov on modeling item-specific variance for the measurement of internal consistency reliability with longitudinal data. Participants were a randomly selected sample of 500 individuals who took on a professional qualifications test in Saudi Arabia over four different…
Descriptors: Test Reliability, Test Items, Longitudinal Studies, Foreign Countries
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
