Table 9 Test of homogeneity of regression slopes (classroom climate)
Source | Sum of Squares | df | Mean Square | F | p-value |
|---|---|---|---|---|---|
Group | 146.21 | 1 | 146.21 | 338.43 | 0.000 |
Pretest | 294.64 | 1 | 294.64 | 682.01 | 0.000 |
Pretest × Group | 1.31 | 1 | 1.31 | 3.03 | 0.090 |
Error | 19.01 | 44 | 0.43 | – | – |