Q. If we add together the sums of squares for the simple main effects of one factor at all the different levels of another factor, we shall obtain: (Solved)
1. The interaction sum of squares for the complete experiment
2. The main effect sum of squares for the second factor, plus the sum of squares for its interaction with the first factor
3. The main effect sum of squares for the first factor
4. The main effect sum of squares for the first factor, plus the sum of squares for its interaction with the second factor
- d. The main effect sum of squares for the first factor, plus the sum of squares for its interaction with the second factor