Dr. Kenney found a group of people who preferred cats as pets and had a pet cat, another group who preferred dogs and had a pet dog, and a third group who preferred parrots and had a pet parrot. He measured the self esteem of these different pet lovers.Below are his results:

Pet CatDogParrot

M 42 46 44

SS25 15 20

n 11 11 11

(a) What is the independent variable?

(b) What is the dependent variable?

(c) What is the null hypothesis?

(d) What do you conclude from this study? (p < .01)

(e) ANOVA summary table of the result.

(f) What is the effect size?

(g) Amazingly, your best friend (who has not taken statistics) is interested in this study.

Explain the results to her and/or him.