Suppose a research conducts a two-factor study comparing two treatments (I and II) for males versus females. The structure of the study is shown in the following matrix.
|
Treatment |
|
I |
II |
| Female |
|
|
| Male |
|
|
a. If the results show that females have higher scores than males in treatment I and equivalent scores in treatment II, is it likely that there will be a main effect for gender? Is it likely that there will be an interaction?
b. If the results show that females have higher scores than males in treatment I and lower scores than males in treatment II, is it likely that there will be a main effect for gender? Is it likely that there will be an interaction?