Table 10. Final model (R2 = 0.673) for forward stepwise multiple regression for the average post-test PEB scores for different dimensions in relation to academic performance.


Dimension df T P
Justification Included 21 -3.078 0.006
Source Included 21 2.473 0.023
Certainty Excluded 21 -.199 0.588
Simplicity Excluded 21 -.190 0.759