I am trying to determine what the appropriate post hoc testing for a one way repeated measure between subject ANOVA. Would it be appropriate to use a Tukey test in this scenario?
Well, appropriateness of the test depends upon the comparisons to be made (whether planned or unplanned comparison). As different post-hoc tests have different desirable properties it's better to have a look at them and then decide which best suits you. This article might be of help to start with. If you are looking for post-hoc for between subject factors, this link and for within subject post-hoc this link give extensive resources on the same. And if you are using SPSS, the help file in SPSS GLM-RMANOVA menu has fair bit of explanations on each test.