Re: [R] Random and fixed effect model with a covariate

Dear Sophie, > I wonder if anyone can please offer any advice on a model > including 2 fixed effects and 1 random effect, as well as a > covariate? > > The experimental design is as follows: > I have a two by two factor design, where the two factors, Age > (A) and Group size (G), both have 2

[R] Random and fixed effect model with a covariate

Dear All, I wonder if anyone can please offer any advice on a model including 2 fixed effects and 1 random effect, as well as a covariate? The experimental design is as follows: I have a two by two factor design, where the two factors, Age (A) and Group size (G), both have 2 levels (old or you