approached significancep = 0.058
Investigating the three demographic variables showed that grade and sex were significant [grade: F (6, 326) = 8.35, p < 0.001, partial eta squared = 0.13; sex: F (3, 162) = 16.12, p < 0.001, partial eta squared = 0.23], and LPE approached significance [ F (3, 162) = 2.54, p = 0.058, partial eta squared = 0.05].