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Ryoo, Ji Hoon – Multivariate Behavioral Research, 2011
Model building or model selection with linear mixed models (LMMs) is complicated by the presence of both fixed effects and random effects. The fixed effects structure and random effects structure are codependent, so selection of one influences the other. Most presentations of LMM in psychology and education are based on a multilevel or…
Descriptors: Models, Selection, Data Analysis, Longitudinal Studies