marginally significantp = 0.10
Inclusion of class rank as a between-subjects factor revealed a significant main effect, F (3, 249) = 3.86, p = 0.01, η 2 p = 0.04, and a marginally significant interaction effect, F (7.60, 630.71) = 1.68, p = 0.10, η 2 p = 0.03.