If I collect data for both a control and an experiment group, what tests would I use to detect a significant difference between groups in:
1) numbers with wound healed at week 4, week 8 and week 12
2) % reduction in wound size week 4, 8 and 12
3) change in score (0-100)
4) distance can walk in 6 mins (meters)
I have said
1) anova
2) kruskal-wallis
3 and 4) repeated measures two way ANOVA, are these correct? I wont know if data is parametric or not until I collect I assume?
ANY ADVICE would be much appreciated,
very stressed final year PT student writing research proposal
Best Answer
It is not perfectly clear what you need, but this is what I would recommend:
1) Fisher exact test (or better log-rank test using event yes/no and time);
2) repeated measure ANOVA (plug in also wound size at baseline);
3) repeated measure ANOVA (plug in also baseline score);
4) t test or Mann-Whitney U test (if you only have this at follow-up, otherwise repeated measure ANOVA.
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