highly significantp <.0001
As this effect had only borderline statistical significance, and was not important for interpreting the results, it was collapsed and the analysis was re-run The main factor Group was highly significant, F (1,35) = 25.7, p <.0001, r 2 = .021, as well as the main factor Level, F (1,35) = 656.7, p <.0001, r 2 = .93.