Table 1: Post-hoc tests of between-subjects effects revealed significant difference in GPAs for each of the four quarters, with the Low Contact group obtaining higher GPAs than the High Contact.

First Quarter

Second Quarter

Third Quarter

Fourth Quarter

F = 30.48

F = 39.87

F = 47.39

F = 28.11

p < .001

p = < 001

p = < .001

p = < .001

partial η2 =  .05

partial η2 = .06

partial η2 = .07

partial η2 = .04

The effect sizes of the between-subjects effects, represented by partial η2’s, were medium. (Small partial η2 = 0.01; medium = 0.09, large = 0.25.).