Is a paired samples t-test suitable in this case? I have 3 tasks and want to find out which one is more effective (that is, to find which task people performed better in).
Just over 30 people have participated in all 3 tasks, and their performance gives a numerical score in each.
Would it be appropriate to use a paired samples t test to compare performance between tasks A and B, A and C and B and C? What would be the best way of approaching data analysis in this instance?
Thank you so much.

I would recommend a linear mixed model, the participants representing the random effects. Then you would be able to get all three comparisons at once, with a pooled variance.
