I have the results from a test (dependent interval variable) applied to a group of patients. These were divided in group A and B based on the type of admission (independent variable 1). Each patient took the test in two separate moments (independent variable 2). I have this result in a table with the columns "group", "test results moment 1" and "test results moment 2".
AFAIK I can test the difference between the two moments in group A/B using a paired t-test. However, how can I see if the difference is significantly different between group A and B? Factorial ANOVA requires that the two variables have independent groups (but one of the variables is a repeated measures...).