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Calcul de la répétabilité des effets d'un modèle lmer
Je viens de tomber sur cet article , qui décrit comment calculer la répétabilité (aka fiabilité, aka corrélation intraclasse) d'une mesure via la modélisation d'effets mixtes. Le code R serait: #fit the model fit = lmer(dv~(1|unit),data=my_data) #obtain the variance estimates vc = VarCorr(fit) residual_var = attr(vc,'sc')^2 intercept_var = attr(vc$id,'stddev')[1]^2 #compute …
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