topic Paired samples t test across more than 2 within person measurements in Statistical Procedures

Paired samples t test across more than 2 within person measurements

xxartpopxx — Mon, 14 Dec 2020 15:46:22 GMT

How would I code this in SAS?

I have a mean at baseline (score_0) 3 months (score_3) 6 months (score_6) 9 months (score_9) and 12 months (score_12)

would I run a proc anova?

ballardw — Mon, 14 Dec 2020 18:11:13 GMT

What is the research question you are trying to answer?

Please be a bit more detailed that "analyze data".

SteveDenham — Mon, 14 Dec 2020 19:03:27 GMT

If these are truly 'paired', i.e., you have a measurement on subjects at the 5 timepoints presented, then you ought to consider doing a repeated measures ANOVA. See example https://documentation.sas.com/?cdcId=pgmsascdc&cdcVersion=9.4_3.4&docsetId=statug&docsetTarget=statug_mixed_examples02.htm&locale=en .

if your data do not have normally distributed independent errors, you may need to try something like this.

SteveDenham