A Sports Psychologist Was Interested in Whether Imagery Would Change

Essay

A sports psychologist was interested in whether imagery would change the performance of five bowlers.Performance was assessed when bowling in a normal manner and when bowling with imagery instructions (i.e.,concentrate on pleasant settings for 10 seconds before each turn); order of conditions was randomized.The scores were as follows: a.Conduct a t test for dependent means with the original difference scores using the .01 level.
b.Apply a square root transformation to the difference scores,and then conduct another t test with these transformed scores.
c.Explain the reasons for using the transformation and the implications of the difference in results of these two methods.Write your explanation for a person who is familiar with the t test for dependent means,but not with data transformations.