1. Trivariate Regression
By Hand

2. Variable N Mean Std Dev   ar
ideal
misanth
ar ideal misanth
ar r p
ideal r p

3. Beta Weights

4. Unstandardize the Weights

5. Obtain the Intercept

6. Obtain R2

7. R2 For 2 or More Predictors

8. Test the R2 SSy = (N-1)s2 = 153(.53501)2 = 43.794
SSregr = R2SSY = .0559(43.794) = 2.447; df = p = 2; MSregr = 2.447/2 =
SSerror = SSY – SSregr = = ; df = n-p-1 = 151; MSerror = /151 =
F(2, 151) = / = 4.468, p = .013

9. Obtain the Semipartial Corrs2

10. Obtain the Partial Corrs2

11. Test the Partials
df = N - p – 1 = 151

12. Also See Obtaining Exact Significance Levels with SAS
Correlation and Regression Analysis: SAS - bivariate and trivariate, with plots
Annotated output