Table 2. Between group baseline and week 4, 6, 8, and 12 data on primary and secondary outcome measures.
| Variable | Baseline (N = 48) | Week 4 (RCT) (N = 48) | Week 8 (IRP) (N = 48) | Week 12 (IRP) (N = 47) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ITG | IWLG | ITG | IWLG | ITG | IWLG | ITG (N = 23) | IWLG (N = 24) | |||||||
| M (SD) | M (SD) | M (SD) | M (SD) | d s | p | M (SD) | M (SD) | d s | p | M (SD) | M (SD) | d s | p | |
| CL-ARI+ | ||||||||||||||
| Temper Outbursts | 0.44 (0.12) | 0.46 (0.10) | 0.30 (0.17) | 0.42 (0.12) | -0.82 | .006* | 0.35 (0.13) | 0.33 (0.15) | 0.12 | .673 | 0.29 (0.18) | 0.40 (0.12) | -0.71 | .019* |
| Irritable Mood | 0.56 (0.22) | 0.48 (0.22) | 0.30 (0.20) | 0.53 (0.20) | -1.19 | <.001* | 0.42 (0.28) | 0.33 (0.24) | -0.36 | .224 | 0.26 (0.22) | 0.45 (0.23) | -0.83 | .007* |
| Impairment | 0.365 (0.15) | 0.31 (0.17) | 0.15 (0.11) | 0.29 (0.16) | -1.01 | .001* | 0.20 (0.16) | 0.18 (0.13) | 0.18 | .532 | 0.12 (0.12) | 0.25 (0.17) | -0.88 | .004* |
| Total | 44.9 (11.3) | 41.6 (11.7) | 24.9 (13.8) | 41.4 (12.7) | -1.25 | <.001* | 32.2 (16.3) | 27.7 (15.7) | 0.29 | .316 | 22.2 (15.4) | 36.4 (13.7) | -0.98 | .002* |
| CGI-I+ | 2.33 (0.76) | 3.88 (0.99) | 1.74 | < .001* | 3.17 (1.17) | 2.79 (1.10) | 0.33 | .258 | 2.39 (0.78) | 3.64 (1.17) | -1.23 | <.001* | ||
| CGI-S | 3.96 (0.55) | 4.00 (0.65) | 2.92 (1.02) | 3.92 (0.66) | -1.17 | < .001* | 3.42 (0.88) | 3.38 (0.77) | 0.05 | .862 | 2.88 (1.08) | 3.83 (0.76) | -1.03 | <.001* |
| CGAS | 55.1 (6.33) | 55.3 (6.55) | 64.2 (9.50) | 55.8 (7.09) | 1.00 | .001* | 60.2 (8.92) | 61.0 (8.09) | -0.10 | .736 | 65.1 (9.11) | 57.4 (7.62) | 0.92 | .003* |
| PTP | 3.21 (1.32) | 4.71 (0.91) | -1.33 | < .001* | 4.08 (1.41) | 3.63 (1.28) | 0.34 | .245 | 3.13 (1.25) | 4.38 (1.17) | -1.03 | .001* | ||
| ARI | 8.38 (1.84) | 8.38 (2.02) | 3.67 (2.32) | 7.08 (2.0) | -1.58 | < .001* | 5.75 (2.98) | 4.83 (3.02) | 0.31 | .295 | 3.30 (2.34) | 5.79 (3.11) | -0.90 | .003* |
| SDQ | ||||||||||||||
| Externalising Score | 11.0 (2.77) | 11.7 (4.33) | 8.85 (2.95) | 11.6 (4.07) | -0.84 | .006* | 9.29 (3.32) | 9.79 (4.80) | -0.121 | .677 | 7.96 (3.46) | 10.33 (4.34) | -0.60 | .044* |
| Internalising Score | 5.88 (3.13) | 6.96 (4.14) | 3.58 (2.55) | 7.08 (3.46) | -1.15 | < .001* | 4.42 (3.73) | 5.42 (3.17) | -0.29 | .323 | 2.87 (2.75) | 6.04 (3.78) | -0.10 | .002* |
| Total Difficulties Score | 16.6 (3.93) | 18.6 (7.13) | 12.2 (4.1) | 18.7 (5.89) | -1.28 | < .001* | 13.71 (5.19) | 15.21 (6.55) | -0.254 | .384 | 10.83 (4.67) | 16.38 (6.76) | -0.95 | .002* |
| Impact Score | 3.63 (1.66) | 3.92 (1.91) | 2.21 (1.59) | 3.25 (2.21) | -0.54 | .068 | 2.42 (1.38) | 2.83 (2.41) | -0.212 | .467 | 1.26 (1.52) | 3.38 (2.83) | -0.93 | .003* |
| SNAP-IV | ||||||||||||||
| ADHD | 29.6 (10.2) | 33.0 (12.5) | 22.6 (11.1) | 29.3 (13.1) | -0.55 | .062 | 24.2 (11.7) | 26.9 (13.3) | -0.21 | .465 | 22.1 (10.5) | 29.8 (14.8) | -0.60 | .046* |
| ODD | 15.5 (4.88) | 15.1 (4.74) | 10.0 (4.74) | 13.6 (4.11) | -0.82 | .007* | 11.0 (5.20) | 11.50 (5.73) | -0.08 | .773 | 9.04 (5.60) | 12.7 (5.30) | -0.66 | .027* |
| EBQ | 34.8 (5.47) | 34.4 (5.95) | 35.7 (4.85) | 34.3 (5.70) | 0.27 | .059 | 34.9 (5.73) | 34.1 (5.33) | 0.14 | .641 | 35.0 (5.70) | 34.4 (5.72) | 0.10 | .728 |
| DASS-21 | ||||||||||||||
| Depression | 4.67 (5.49) | 7.08 (6.49) | 3.83 (3.82) | 4.17 (5.17) | -0.07 | .800 | 2.92 (2.83) | 4.75 (7.39) | -0.33 | .265 | 2.26 (2.12) | 5.67 (6.15) | -0.74 | .016* |
| Anxiety | 2.58 (2.73) | 4.42 (5.66) | 1.83 (2.76) | 3.00 (4.04) | -0.34 | .250 | 2.00 (2.57) | 2.75 (3.58) | -0.24 | .409 | 1.83 (2.82) | 3.17 (3.77) | -0.40 | .174 |
| Stress | 13.50 (7.42) | 14.50 (6.76) | 9.25 (5.59) | 11.25 (6.97) | -0.32 | .279 | 10.83 (6.40) | 10.17 (6.27) | 0.11 | .717 | 10.00 (6.06) | 13.42 (9.06) | -0.44 | .138 |
Note. M = mean; SD = standard deviation, d = Cohen’s d effect size; RCT = randomized control trial phase; IRP = immediate replication phase; CL-ARI = Revised Clinician-rated Affective Reactivity Scale; CGI-I = Clinical Global Impressions Improvement Scale; PTP = Parent Target Problem Rating Scale; ARI = Affective Reactivity Index; SDQ = Strengths and Difficulties Questionnaire; SNAP-IV = The Child Swanson, Nolan, and Pelham-IV Questionnaire 26; EBQ = Eating Behavior Questionnaire.
+ = primary measure.
* p < .05.