"Moonlighters" are workers who hold two jobs at the same time. What are the factors that impact the likelihood of a moonlighting worker becoming aggressive toward his/her supervisor? This was the research question of interest in the Journal of Applied Psychology (July 2005). Completed questionnaires were obtained from n = 105 moonlighters, and the data were used to fit several multiple regression models for supervisor-directed aggression score (y). Two of the models (with R2 values in parentheses) are given below:

a. Interpret the R2 values for the models.
b. Give the null and alternative hypotheses for comparing the fits of models 1 and 2.
c. Are the two models nested? Explain.
d. The nested F-test for comparing the two models resulted in F = 42.13 and p-value e. A third model was fit, one that hypothesizes all possible pairs of interactions between self-esteem, history of aggression, interactional injustice at primary job, and abusive supervisor at primary job. Give the equation of this model (model 3).
f. A nested F-test to compare models 2 and 3 resulted in a p-value > .10. What can you conclude from this result?

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Model 1: E(y) Bi(Age) B(Gender)+ B(Interatctional injustice at 2nd job) + Bi(Abusive supervisor at 2nd job) (R-= .101) Model 2: E(y) = A + A(Age) +臥Gender) + B (Interactional injustice at 2nd job)+ B (Abusive supervisor at 2nd job)+ Bs (Self-esteem) + Be(History of aggression) + B, (Interactional injustice at primary job) + Bs (Abusive supervisor at primary job) (R-555)