Statistics For Psychology Ch 9 Problem 23

An
experiment is conducted in which 60 participants each fill out a personality
test, but not according to the way the participants see themselves. Instead, 15
are randomly assigned to fill it out according to the way they think their mothers
see them (that is, the way they think their mothers would fill it out to
describe the participants); 15 as their fathers would fill it out for them; 15
as their best friends would fill it out for them; 15 as the professors they
know best would fill it out for them. The main results appear in Table 9-17.
Explain these results to a person who has never had a course in statistics.Explain these results to a person who has never had a
course in statistics.
Using the information in the preceding description,
figure the effect size for the study.