Table 3.
Difference between pre and post- intervention scores on MESSIER scales (N = 30)
| MESSIER scale | Pre-intervention mean (SD) | Post-intervention mean (SD) | Mean difference | t | p |
|---|---|---|---|---|---|
| Positive verbal | 11.9 (5.3) | 14.4 (6.6) | 2.57 | 1.94 | 0.063 |
| Positive nonverbal | 22.7 (8.1) | 21.8 (7.5) | 0.97 | 0.98 | 0.338 |
| General positive | 33.8 (12.2) | 37.4 (10.2) | 3.53 | 2.87 | 0.008 |
| Total positive | 68.1 (23.9) | 73.2 (19.0) | 5.10 | 1.92 | 0.364 |
| Negative verbal | 17.4 (5.8) | 18.8 (9.0) | 8.71 | 0.92 | 0.364 |
| Negative nonverbal | 19.8 (7.6) | 22.6 (10.1) | 2.80 | 1.60 | 0.121 |
| General negative | 18.8 (6.0) | 19.47 (7.2) | 0.67 | 0.66 | 0.517 |
| Total negative | 57.0 (16.7) | 59.9 (19.4) | 2.90 | 0.90 | 0.378 |
| Overall total | 126.6 (17.9) | 136.0 (20.9) | 9.34 | 3.71 | 0.001 |
The significant value (p < 0.05) is in italic
MESSIER Matson evaluation of social skills for individuals with severe retardation