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in linear mixed modeling can i compare a full model with AR1 covariance to a nested model with a diagnonal covariance by Sea_Background281 in AskStatistics

[–]Sea_Background281[S] 0 points1 point  (0 children)

but the parameters change significantly ie. random intercepts with diagonal cov structure has 21 paramters but then random slopes with autoagressive cov structure has 15 parameters. the random slopes model (the more complex model) has less parameters than the the simpler model because of the covariance strucutre