Q1. Statistical Regression is used to:

a. To identify what the key predictors are of a specified dependent variable.

b. Perform mediation analyses

c. To test a specific hypothesis.

d. To assess the R2 change between subsets.

Q2. if we wanted to determine what the relationship of optimism was with medication adherence after controlling for sex and age, what type of regression would be used?

a. forward regression

b hierarchical regression.

c. multiple regression.

d. stepwise regression

Q3.given the following finding, AdjR2=.43, F=(5,94)=20.76,p=.012, we could accurately state that:

a. the finding was not statistically significant.

b. that N=100.

c.that N=99.

d. the study was under powered.

Q4. given the following finding, AdjR2=.43, F=93,1450)=35.54,p<.001, we can assume that:

a. that the multiple regression contained 2 predictors.

b.the simple regression contained 2 predictors.

c.the simple regression contained 3 predictors.

d.that the multiple regression contained 3 predictors.