An advanced model is built from simple terms, polynomial terms and their interactions.
||A single quantitative simple term (X).
||Two or more quantitative simple terms (X, Z)
||A series of polynomial terms of the nth degree (X, X², X³...).
||A single categorical term (A).
||Two categorical terms (A, B).
|Two-way ANOVA with interaction
||Two categorical terms and their interaction (A, B, A*B).
|Fully factorial ANOVA
||All the simple categorical terms and all the crossed interaction terms (A, B, C, A*B, A*C, B*C, A*B*C).
||One or more categorical terms and one or more quantitative terms (A, X) or (A, X, A*X).