I would really appreciate some help. I have been trying to find out which is the best test to account for Covariates. I have a repeated measures design. For instance participants will see on of two stimuli, and we will collect two or more continuous data relating to that stimuli. For instance how long they perceived the stimuli to last and the time it took to respond. There are a few other similar continous stimuli.
I have done repeated measures t test for all of these dependant variables. However, I am mostly interested how long they perceived the stimuli to last. I now want to see if my data is still significant considering the other continous data as possible covariates. (FYI this is just an example)
From reading around (although it seems unclear) I think I need a mancova. However can you advise what is the best test to run and how to run it in matlab (or point me in the direction)?