Table 4. Results of 3-way Repeated Measures ANOVA.
| Source | Sum of squares | Deg. of freedom | Mean square | F | p |
| L | 1143040.1 | 1 | 1143040.1 | 457.82 | 0 |
| W | 50432.3 | 1 | 50432.3 | 20.2 | 0 |
| S | 108290.6 | 1 | 108290.6 | 43.37 | 0 |
| L*W | 401.6 | 1 | 401.6 | 0.16 | 0.6894 |
| L*S | 18280.3 | 1 | 18280.3 | 7.32 | 0.0083 |
| W*S | 778.1 | 1 | 778.1 | 0.31 | 0.5782 |
| L*W*S | 609.9 | 1 | 609.9 | 0.24 | 0.6225 |
| Error | 199736 | 80 | 2496.7 | ||
| Total | 1521569 | 87 |
We find highly significant main effects of L, W, and S and a slight interaction between L and S. Applying a Bonferroni correction for seven hypotheses reduces the criterion p value from 0.05 to 0.0071, rendering the L*S interaction insignificant.