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Direct linkDaniel Kasper; Katrin Schulz-Heidorf; Knut Schwippert – Sociological Methods & Research, 2024
In this article, we extend Liao's test for across-group comparisons of the fixed effects from the generalized linear model to the fixed and random effects of the generalized linear mixed model (GLMM). Using as our basis the Wald statistic, we developed an asymptotic test statistic for across-group comparisons of these effects. The test can be…
Descriptors: Models, Achievement Tests, Foreign Countries, International Assessment
Download full textMullis, Ina V. S., Ed.; Martin, Michael O., Ed. – International Association for the Evaluation of Educational Achievement, 2019
Conducted every five years, Progress in International Reading Literacy Study (PIRLS) assesses international trends in the reading comprehension of young students in their fourth year of schooling--an important transition point in children's development as readers. PIRLS was designed to complement the International Association for the Evaluation of…
Descriptors: Foreign Countries, Achievement Tests, Grade 4, International Assessment
