Whether or not that’s statistically appropriate, feel free to comment. Already commented. It's not appropriate.   I’m looking for the equivalent of a paired t-test, but for four groups. I was under the impression that an anova was the appropriate test. A plain old ANOVA, like the one you marked correct, is the equivalent of an un-paired t-test. The code I provided is the ANOVA version of a paired t-test.   As far as missing data, there are two missing data points for one of the four scales, but the other three are complete.   Do not use PROC ANOVA, use PROC GLM. ... View more