I am doing an analysis on my data with a 2x2 factorial design. So basically I have four groups, diet intervention group,exercise intervention group, Diet and exercise combination intervention group and a control group. I am trying to perform a 2 way anova and can't figure out how to set up the raw data on a spss spreadsheet.
If i have, Dependent variable: body weight
2 independent variables: diet, exercise
How do i set up the combination group in the spreadsheet?
Also, Is a 2way repeated measure anova a better test for this design?
Thanks for the help in advance.