Develop a preliminary main effects model for the GLOW_RAND data using a population average model with exchangeable correlation structure. Develop a preliminary main effects model for the GLOW_RAND...

Develop a preliminary main effects model for the GLOW_RAND data using a population average model with exchangeable correlation structure.

Develop a preliminary main effects model for the GLOW_RAND data using a cluster-specific model with random intercept based on the SITE.