Anova question

#1
Anova question... I know anova is typically used on three groups who take one test, for example, but can you use it on one group who takes three tests (to compare the means on the three different tests, when all participants took all three tests)?
 
#2
Hello, Grantyb,
you can use ANOVA repeated for this analysis. But firstly you need to check assumptions to use this model: make histograms for each test and see how the distributions are similar to the normal.