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alpha

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Evaluating Coefficient Alpha and Alternatives in Non-Normal Data
Statistical Methods and Data Analysis

Evaluating Coefficient Alpha and Alternatives in Non-Normal Data

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Leifeng Xiao and Kit-Tai Hau’s article, “Performance of Coefficient Alpha and Its Alternatives: Effects of Different Types of Non-Normality,” examines how coefficient alpha and other reliability indices perform under varying conditions of non-normality. The study offers critical insights into how these measures behave across different data structures, providing useful recommendations …

Age-Based Reliability Analysis of the Jouve Cerebrals Test of Induction
Psychological Measurement and Testing

Age-Based Reliability Analysis of the Jouve Cerebrals Test of Induction

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Abstract This research focused on assessing the reliability of the Jouve Cerebrals Test of Induction (JCTI), a computerized 52-item test measuring nonverbal reasoning without time constraints. The reliability of the test was determined through Cronbach’s Alpha coefficients and standard errors of measurement (SEm), calculated across various age groups. A total …