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Little, Todd D.; Bontempo, Daniel; Rioux, Charlie; Tracy, Allison – International Journal of Research & Method in Education, 2022
Multilevel modelling (MLM) is the most frequently used approach for evaluating interventions with clustered data. MLM, however, has some limitations that are associated with numerous obstacles to model estimation and valid inferences. Longitudinal multiple-group (LMG) modelling is a longstanding approach for testing intervention effects using…
Descriptors: Longitudinal Studies, Hierarchical Linear Modeling, Alternative Assessment, Intervention