I have a data set that looks like this:
GROUP WEEK1 WEIGHT(kg) WEEK2 WEIGHT(kg) WEEK3 WEIGHT(kg)
Control
Subject C1 40 42 44
Subject C2 52 57 57
Subject C3 55 55 60
Subject C4 45 47 49
Experimental
Subject E1 38 40 49
Subject E2 42 47 50
Subject E3 55 60 68
Subject E4 65 77 88
My question is: What tool shall I use to test my hypothesis that the two groups (control and experimental) do not significantly differ with regard to weight?
Please note that the weights are repeated measures. I understand that if I were to examine the data per group (Control
first, then Experimental
), I'd perform a repeated measures ANOVA for control and another for experimental.