Table 3.
Treatment group (n = 42) | Control group (n = 42) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Preassessment mean (SD) | Postassessment mean (SD) | Diff. | % norm | t | P | Preassessment mean (SD) | Postassessment mean (SD) | Diff. | % norm | t | P | |
Parent measures | ||||||||||||
Parenting stress | 24.3 (9.51) | 15.8 (8.9) | −8.5 | 44% | −6.49 | .0000001 | 22.5 (9.33) | 21.0 (9.6) | −1.5 | 9% | −1.39 | .171 |
ABC | 82.4 (25.9) | 61.5 (26.6) | −20.9 | 32% | −5.64 | .000001 | 83.1 (25.9) | 75.7 (28.6) | −7.4 | — | −2.48 | .018 |
Abnormal sensory response | 39.7 (9.1) | 30.4 (9.8) | −9.3 | 38% | −6.68 | .00000005 | 41.3 (10.3) | 38.6 (11.6) | −2.7 | 11% | −3.00 | .005 |
Tactile/oral abnormalities | 29.6 (6.8) | 22.4 (8.0) | −7.2 | 49% | −6.14 | .0000003 | 29.6 (7.7) | 27.7 (8.6) | −1.9 | 11% | −2.59 | .013 |
Self-regulatory difficulties | 57.6 (11.2) | 45.1 (11.5) | −12.5 | 34% | −7.64 | .000000001 | 57.4 (13.4) | 54.0 (14.5) | −3.4 | 9% | −2.35 | .024 |
Blinded assessor measures | ||||||||||||
Vineland daily living skills | 34.3 (17.7) | 42.7 (19.1) | 8.4 | 5.21 | .00001 | 37.5 (20.0) | 45.9 (22.7) | 8.4 | 5.50 | .000002 | ||
Vineland socialization | 36.0 (14.4) | 45.7 (16.3) | 9.7 | 5.54 | .000003 | 40.7 (17.4) | 48.6 (21.0) | 7.9 | 5.82 | .000002 | ||
CARS | 39.7 (6.6) | 38.2 (6.6) | −1.5 | −2.61 | .013 | 38.0 (7.8) | 37.7 (7.8) | −0.3 | −1.13 | .266 | ||
PLS-5 auditory communication | 25.9 (12.1) | 30.6 (12.1) | 4.7 | 6.07 | .0000004 | 29.2 (13.5) | 31.8 (14.3) | 2.6 | 5.16 | .00001 | ||
PLS-5 expressive communication | 26.5 (11.1) | 30.0 (11.1) | 3.5 | 6.22 | .0000002 | 28.2 (11.6) | 31.3 (13.1) | 3.1 | 5.54 | .000002 |
Note: SD = standard deviation; Diff. = the change from pre- to postscore; % norm = the percentage reduction in parenting stress, autistic behavior, abnormal sensory responses, and self-regulatory difficulties toward typically developing children.