approached significancep = 0.072
Pre-test concentration was the only parameter of task engagement that approached significance ( B = −0.006, p = 0.072, sr 2 = 0.077), whereas effort ( B = −0.015, p = 0.297, sr 2 = 0.027) and motivation ( B = −0.001, p = 0.625, sr 2 = 0.006) did not.