Table 5.
Aim 1 Intervention Effects at Baseline (Pre), End of Treatment (Post), and Follow Up (F): Child Outcomes
| PIT | UC | Regression Coefficients | Effect Sizes (Pre to Post) (Pre to Follow-Up) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Measure/Subscale | Pre M(SD) N=12 | Post M(SD) N=11 | F M(SD) N=10 | Pre M(SD) N=13 | Post M(SD) N=12 | F M(SD) N=9 | B | β | P | PIT ES | UC ES | PIT ES | UC ES |
| CSBS | |||||||||||||
| Social | 17.83 (5.52) | 20.55 (3.64) | 23.40 (3.03) | 19.08 (6.14) | 19.36 (5.39) | 20.00 (6.72) | 1.13 | .13 | .28 | .55 | .05 | 1.19 | .15 |
| Speech | 6.58 (3.87) | 8.73 (3.66) | 10.50 (3.38) | 8.08 (2.90) | 9.82 (3.25) | 10.63 (4.07) | −.50 | −.07 | .66 | .54 | .54 | 1.04 | .75 |
| Symbolic | 10.00 (2.86) | 13.82 (1.94) | 14.40 (2.01) | 12.23 (5.12) | 13.55 (4.10) | 14.38 (3.96) | 1.23 | .20 | .07 | 1.47 | .25 | 1.71 | .45 |
| Total | 34.42 (10.70) | 43.09 (6.85) | 47.30 (6.27) | 39.38 (13.25) | 42.73 (12.10) | 45.00 (14.13) | 1.89 | .10 | .29 | .91 | .24 | 1.40 | .41 |
| CDI | |||||||||||||
| Words Understood | 108.6 (116.3) | 162.2 (103.0) | 225.2 (98.62) | 167.8 (143.6) | 171.6 (113.3) | 181.7 (116.2) | −16.5 | −.08 | .49 | .48 | .03 | 1.08 | .11 |
| Words Produced | 41.18 (100.7) | 61.00 (104) | 89.56 (133.9) | 39.46 (54.82) | 67.70 (97.67) | 93.29 (102.5) | −35.4 | −.18 | .09 | .19 | .35 | .43 | .75 |
| Early Gestures | 11.36 (4.23) | 13.27 (2.41) | 15.00 (2.06) | 13.15 (5.19) | 13.50 (3.69) | 13.14 (4.63) | −.52 | .10 | .65 | .54 | .07 | 1.07 | <−.01 |
| Late Gestures | 22.73 (10.55) | 28.91 (7.56) | 31.50 (7.47) | 23.08 (15.22) | 22.80 (12.34) | 26.29 (14.89) | 2.06 | .10 | .46 | .66 | −.02 | .95 | .22 |
| Vineland | |||||||||||||
| Communication SS | 81.36 (11.26) | 85.50 (10.59) | 87.33 (14.06) | 86.42 (13.42) | 84.44 (32.40) | 86.38 (14.76) | 12.76 | .28 | .18 | .38 | −.08 | .49 | <−.01 |
| Socialization SS | 90.91 (9.49) | 92.80 (13.22) | 91.22 (12.65) | 91.75 (15.39) | 96.44 (14.95) | 94.88 (16.29) | .44 | .02 | .95 | .17 | .30 | .03 | .20 |
| ABC Composite SS | 89.18 (8.33) | 90.70 (8.10) | 91.65 (8.37) | 88.75 (16.98) | 92.56 (14.25) | 91.75 (20.53) | .38 | .02 | .92 | .19 | .24 | .29 | .17 |
Abbreviations: PIT = Project ImPACT for Toddlers; UC=Usual Care; CSBS=Communication and Symbolic Behavior Scales-Infant Toddler Checklist; CDI=MacArthur Bates Communicative Development Inventory; Vineland= Vineland Adaptive Behavior Scales, Second Edition; ES = Effect size; SS=Standard score