X=categorical IV (X1, X2)

M1,M2,Y=continuous variables

First:

1. compare X1 and X2, and hypothesize that X1 will predict higher Y

2. X1 will predict M1

3. M1 will predict M2

4. X1 will predict M2

5. M1 will mediates between X1 and M2

6. X1 will predict Y

7. M2 will predict Y

8. M2 will mediates between X1 and Y

*Should I repeat everything from step 2-8 for X2? I'm only interested in X1 sample.