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Two-way ANOVA of two-factor variance analysis (sex; grade)
| Source of variation | Total variation, % | F (dfn, dfd) | P value |
| Interaction | 0.045 | F (1, 206)=0.095 | 0.759 |
| Row factor (sex) | 0.598 | F (1, 206)=1.27 | 0.261 |
| Column factor (grade) | 2.240 | F (1, 206)=4.76 | 0.001 |
ANOVA, analysis of variance.
