A Sports Psychologist Was Interested in Whether Imagery Would Change

question 41

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.

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Definitions:

Course of Action

A plan or strategy that one intends to follow to achieve a specific goal or to resolve a problem.

Persuasive Requests

Appeals or proposals designed to convince someone to undertake a specific action or adopt a particular standpoint.

Specific Action

A particular or defined course of conduct or procedure directed towards achieving a given goal or objective.

Audience Decision

The outcome or action taken by the audience after being exposed to a message or piece of communication.