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Morgan, Grant B.; Zhu, Min; Johnson, Robert L.; Hodge, Kari J. – Language Assessment Quarterly, 2014
Common estimators of interrater reliability include Pearson product-moment correlation coefficients, Spearman rank-order correlations, and the generalizability coefficient. The purpose of this study was to examine the accuracy of estimators of interrater reliability when varying the true reliability, number of scale categories, and number of…
Descriptors: Interrater Reliability, Correlation, Generalization, Scoring
Lowie, Wander; van Dijk, Marijn; Chan, Huiping; Verspoor, Marjolijn – Studies in Second Language Learning and Teaching, 2017
A large body studies into individual differences in second language learning has shown that success in second language learning is strongly affected by a set of relevant learner characteristics ranging from the age of onset to motivation, aptitude, and personality. Most studies have concentrated on a limited number of learner characteristics and…
Descriptors: Second Language Learning, Individual Differences, Learning Motivation, Personality Traits
Romano, Jeanine L.; Kromrey, Jeffrey D. – Educational and Psychological Measurement, 2009
This study was conducted to evaluate alternative analysis strategies for the meta-analysis method of reliability generalization when the reliability estimates are not statistically independent. Five approaches to dealing with the violation of independence were implemented: ignoring the violation and treating each observation as independent,…
Descriptors: Reliability, Generalization, Meta Analysis, Correlation

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