Suppose I wish to assess reaction time of individuals before and after treatment.
Now to analyse the results I could use a paired t-test or if I had additional treatments, I could use a repeated measurements ANOVA. These approaches however assume that there is 1 measurement of reaction time per person, per treatment.
However suppose that for each individual, we measure their reaction time 5 times before treatment and 5 times after treatment. How should I adjust the t-test or repeated measurements ANOVA to account for this?