near-significantp = 0.081
The repeated-measures ANOVA indicated that the effect of time was not statistically significant (Wilks’ λ = 0.998, F (1,166) = 0.338, p = 0.562, η p 2 = 0.002); nevertheless, a significant effect of the time × group interaction emerged (Wilks’ λ = 0.946, F (1,166) = 9.459, p = 0.002, η p 2 = 0.05): there was a significant difference over time (i.e., increasing) for the experimental group (Wilks’ λ = 0.929, F (1,104) = 7.922, p = 0.006, η p 2 = 0.07) and a near-significant difference over time (i.e., decreasing) for the control group (Wilks’ λ = 0.952, F (1,62) = 3.152, p = 0.081, η p 2 = 0.05).