A Comparison of Classical and Modern Measures of Internal Consistency

Three measures of internal consistency – Kuder-Richardson Formula 20 (KR20), Cronbach’s alpha (α), and person separation reliability (R) – are considered. KR20 and α are common measures in classical test theory, whereas R is developed in modern test theory and, more precisely, in Rasch measurement....

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Bibliographic Details
Main Authors: Pasquale Anselmi, Daiana Colledani, Egidio Robusto
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-12-01
Series:Frontiers in Psychology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpsyg.2019.02714/full