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Between-School Variation in Students' Achievement, Motivation, Affect, and Learning Strategies: Results from 81 Countries for Planning Group-Randomized Trials in Education

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Brunner, Martin; Keller, Ulrich; Wenger, Marina; Fischbach, Antoine; Lüdtke, Oliver – Journal of Research on Educational Effectiveness, 2018

To plan group-randomized trials where treatment conditions are assigned to schools, researchers need design parameters that provide information about between-school differences in outcomes as well as the amount of variance that can be explained by covariates at the student (L1) and school (L2) levels. Most previous research has offered these…

Descriptors: Academic Achievement, Student Motivation, Psychological Patterns, Learning Strategies