A women€™s studies professor was curious about the long-term effect, on men, of taking a women€™s studies class. She thought that it would make them more open-minded and less sexist. She obtained a random sample of 10 first-year male students at her university and assigned them to take Introduction to Women€™s Studies. She administered a scale that measures sexist beliefs before the class started, again at the end of the semester, and again 10 years later. The scale measures at the interval level and has a mean of 50 with a standard deviation of 10. Scores above 50 indicate a person has more sexist beliefs than average; scores below 50 indicate a person has fewer sexist beliefs than average. Here are the mean scores for her 10 participants: 54.00 (pre-class), 46.00 (post-class), 38.00 (10 years later). No assumptions were violated and a one way, repeated-measures ANOVA, with the alpha set at .05, was completed. Results are shown below. F_cv= 3.555, η²= 33.21%, HSD = 5.10. Given this information, complete a four-point interpretation.

Source of Sum of Degrees of Mean Variability Squares Freedom Square ratio Subjects 2,215.33 Treatment 1,280.00 640.00 32.11 2 Residual 358.67 18 19.93 Total 3,854.00 29