I would like to explain one dependent (scale) variable with three independent variables (all categorical). As far as I understood I can try Factorial Anova. Is it true? Also, my dependent variable may affect the combined effect of these three independent groups. By using this method, can I measure it?
my dependent variable is performance and I try to understand which factor affects the performance of people more. As I had three different conditions, I have results from the same people more than once. And in one point, I used the effect of two conditions together to see if this will make things worse. You can see the example here.