Table 2.
Number of teachers/classes and group-sizes, together with means and standard deviations of the SCAS broken down per supervision group
| Groups | Number of teachers/classes | Class size median (min-max) | Pre (SCAS) | Post (SCAS) | Follow-up (SCAS) | |||
|---|---|---|---|---|---|---|---|---|
| M (SD) | n | M (SD) | n | M (SD) | n | |||
| High supervision | 9 | 20.5 (18–26) | 30.05 (17.65) | 134 | 21.40 (15.76) | 137 | 21.84 (14.04) | 124 |
| Low supervision | 11 | 22.5 (15–32) | 24.29 (13.84) | 199 | 20.73 (14.64) | 183 | 19.51 (13.05) | 170 |
| Control group | 22 | 22.0 (18–27) | 27.26 (14.40) | 322 | 21.78 (15.76) | 317 | 20.76 (13.54) | 279 |