Hi all
Can anybody tell me which F-test option in G power 3.1.9.2 is appropriate to find out the sample size for a 2x2x2 repeated measures ANOVA?
The three within subjects factors are A, B & C.
I am interested in finding out how many subjects I will require to find a main effect of A and an interaction between A&B.
Any help would be greatly appreciated. (I can only find advice on mixed factorial ANOVA and so I am not sure how this applies).
Many thanks in advance
Jessica
(PhD student losing the will to live).
Can anybody tell me which F-test option in G power 3.1.9.2 is appropriate to find out the sample size for a 2x2x2 repeated measures ANOVA?
The three within subjects factors are A, B & C.
I am interested in finding out how many subjects I will require to find a main effect of A and an interaction between A&B.
Any help would be greatly appreciated. (I can only find advice on mixed factorial ANOVA and so I am not sure how this applies).
Many thanks in advance
Jessica
(PhD student losing the will to live).