Question 426:
1Answer:
No answer provided yet.Yes they can, but you'll likely get similiar results on the raw scores using an ANOVA and the post-hoc tukey tests on comparisons. How many groups are you testing and why do you need to convert them to pecentages? One way to convert them to percentages is to subtract each mean from the score and divide that result by the standard deviation (a z-score), then use the area under the normal curve for each value as the percentage.