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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: J Exp Psychol Gen. 2019 Apr;148(4):739–762. doi: 10.1037/xge0000581

Table 5.

Experiment 1 Summary of Multiple Regression Analyses Explaining Variability in Academic Outcome as a function of Initial Self-derivation and Cognitive Correlates

Predictor ΔR2 β VIF p
Model 1: SAT Verbal (N = 76)
Step 1 .001 .98
Age .003 1.00 .98
Gender .02 1.00 .84
Step 2 .27** <.001
Age −.09 1.09 .42
Gender .06 1.04 .59
Self-derivation (Session 1) .19 1.64 .16
Verbal Comprehension .36* 1.39 .004
Digits Backward .10 1.39 .40
Total adj R2 .22** <.001
Model 2: Concurrent GPA (N = 97)
Step 1 .02 .32
Age .11 1.00 .29
Gender −.11 1.00 .29
Step 2 .14* .002
Age .004 1.09 .97
Gender −.09 1.05 .38
Self-derivation (Session 1) .12 1.56 .33
Verbal Comprehension .33* 1.42 .004
Digits Backward −.04 1.26 .71
Total adj R2 .12* .002
Model 3: Longitudinal GPA (N = 88)
Step 1 .06 .08
Age .12 1.01 .25
Gender −.21* 1.01 .048
Step 2 .11* .02
Age .02 1.10 .84
Gender −.19 1.07 .07
Self-derivation (Session 1) .11 1.61 .41
Verbal Comprehension .30* 1.50 .02
Digits Backward −.10 1.28 .40
Total adj R2 .11* .02

Note:

*

indicates p ≤ .05,

**

indicates a p ≤.001;

+

indicates p< .06 Beta weights are standardized.