Table 6.
Pervasive Developmental Disorders Behavior Inventory (PDD-BI).
| Treatment Group (n = 27) | Non-Treatment Group (n = 26) | t-Test | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Initial | S.D. | Final | S.D. | % Change | Initial | S.D. | Final | S.D. | % Change | ||
| Maladaptive Behaviors—higher scores mean worse problems | |||||||||||
| Sensory | 24.4 | 14.1 | 18.7 | 12.3 | −23% | 14.4 | 11.0 | 13.7 | 11.2 | −5% | 0.001 |
| Ritual | 18.9 | 7.2 | 13.9 | 7.6 | −27% | 15.4 | 7.8 | 15.1 | 8.1 | −2% | 0.001 |
| SOCPP | 20.6 | 7.8 | 16.1 | 8.2 | −22% | 17.3 | 6.7 | 16.3 | 6.6 | −6% | 0.008 |
| SEMPP | 20.1 | 7.8 | 17.3 | 7.7 | −14% | 15.2 | 6.8 | 14.5 | 6.5 | −5% | 0.08 |
| AROUSE | 20.7 | 7.2 | 16.3 | 7.8 | −21% | 17.4 | 7.2 | 17.0 | 7.2 | −2% | 0.002 |
| FEARS | 23.4 | 9.0 | 18.7 | 9.4 | −20% | 24.4 | 8.1 | 23.4 | 8.8 | −4% | 0.03 |
| AGG | 18.6 | 12.4 | 14.2 | 11.0 | −24% | 14.0 | 11.0 | 14.8 | 11.2 | 5% | 0.002 |
| Adaptive Behaviors—higher scores mean higher ability | |||||||||||
| SOCAPP | 62.8 | 22.2 | 74.2 | 23.3 | +18% | 68.2 | 20.1 | 73.3 | 17.3 | +8% | 0.02 |
| EXPRESS | 57.4 | 24.7 | 66.1 | 24.2 | +15% | 66.8 | 24.3 | 70.5 | 21.0 | +5% | 0.004 |
| LMRL | 27.4 | 8.9 | 29.6 | 8.6 | +8% | 27.1 | 8.6 | 28.1 | 7.9 | +4% | 0.07 |
| Modified Autism Composite | −56.3 | 57.7 | −91.6 | 60.7 | −21% # | −85.2 | 53.0 | −96.0 | 50.2 | −5% # | 0.0002 |
# Since the Autism Composite is not rated on an absolute scale, we report the average of the % changes of each of the subscales of which it is composed, to give a sense of the degree of change of symptoms.