Dr. Campbell is assessing whether parent/child relationship quality changes in adolescence. She recruits 6 parents with adolescent children to participate in this longitudinal study. The parents rate...

Dr. Campbell is assessing whether parent/child relationship quality changes in adolescence. She recruits 6 parents with adolescent children to participate in this longitudinal study. The parents rate the quality of their relationship with their children on a 1 to 10 scale, with higher scores indexing a higher quality relationship. The parents rate the quality of this relationship at three time points, when the adolescent is (1) 13 years old, (2) 16 years old, and (3) 19 years old. The data is as follows:

For this problem, complete the following steps. Show all your work.

C) Compute the test statistic.

D) Use the test statistic to make a decision and interpret that decision.

E) If needed, conduct a post hoc test.

F) Compute and interpret ηp2 as a measure of the effect size.