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Direct linkWarne, Russell T. – Journal of Advanced Academics, 2011
Reliability generalization (RG) is a meta-analysis that combines and synthesizes reliability coefficients from different studies to ascertain the average observed reliability across studies. An RG study was conducted on previously reported data from 16 samples of the Overexcitability Questionnaire--Two (OEQII) with a combined "N" of 5,275.…
Descriptors: Measures (Individuals), Error of Measurement, Psychometrics, Generalization
Download full textRolstad, Kellie; Mahoney, Kate; Glass, Gene V. – Journal of Educational Research & Policy Studies, 2008
In light of a recent revelation that Gersten (1985) included erroneous information on one of two programs for English Language Learners (ELLs), the authors re-calculate results of their earlier meta-analysis of program effectiveness studies for ELLs in which Gersten's studies had behaved as outliers (Rolstad, Mahoney & Glass, 2005). The correction…
Descriptors: Bilingual Education, Second Language Learning, Program Effectiveness, Effect Size
Horng, Eileen Lai; Klasik, Daniel; Loeb, Susanna – National Center for Analysis of Longitudinal Data in Education Research, 2009
School principals have complex jobs. To better understand the work lives of principals, this study uses observational time-use data for all high school principals in Miami-Dade County Public Schools. This paper examines the relationship between the time principals spent on different types of activities and school outcomes including student…
Descriptors: School Effectiveness, Principals, High Schools, Time Management
