Table 2.
Results of repeated two-way ANOVA for differences in cheek pressure according to presence or absence of gum chewing training and measurement time point.
| Source | SS | df | MS | F value | P value |
|---|---|---|---|---|---|
| Presence or absence of training | |||||
| A | 109.868 | 1 | 109.868 | 5.699 | 0.026* |
| Error (A) | 424.147 | 22 | 19.279 | ||
| Measurement time point | |||||
| B | 57.301 | 2.377 | 24.108 | 26.970 | <0.001** |
| A×B | 42.069 | 2.377 | 17.699 | 19.801 | <0.001** |
| Error (B) | 46.742 | 52.291 | 0.894 |
SS: sum of squares. df: degree of freedom. MS: mean square.
**, *: denotes statistical significance (critical region; P < 0.01, P < 0.05).