Easy
Hierarchical Regression
SPSS
Free
In a hierarchical regression predicting Job Performance, Step 1 includes Age and Gender. Step 2 adds Training Hours. The researcher’s goal is to control for demographics before testing Training Hours. What is the best interpretation if SPSS shows ΔR² = .08 with p = .01 for Step 2?
A
Training Hours explains an additional 8% of the variance in Job Performance beyond Age and Gender, and this improvement is statistically significant
B
Training Hours explains 8% of the variance in Job Performance in total, and Age and Gender no longer matter
C
Age and Gender explain 8% of the variance in Job Performance, and Training Hours is not significant
D
The overall regression is invalid because predictors were entered in two steps instead of one