Table 3. ANCOVA using pre-test as covariate to adjust for the post-test score .
| Source of variation | Sum of squares | df | Mean square | F | P |
| Groups | 21.670 | 1 | 21.670 | 3.692 | 0.057 |
| Error | 645.631 | 110 | 5.869 | ||
| Total | 10003.000 | 113 |
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