Table 3.
Aggressive symptoms and register-based criminal reconvictions at follow-up in an RCT of an individualized CBT intervention (iCBT) plus treatment-as-usual (TAU) vs. TAU-only among convicted serious, young male violent offenders.
| Outcome | 12-month follow-up | 24-month follow-up | ||||
|---|---|---|---|---|---|---|
| iCBT participants(N = 38) | TAU participants(N = 43) | Effect size difference Cohen's d (95% CI) | iCBT participants(N = 38) | TAU participants(N = 43) | Effect size difference Cohen's d (95% CI) | |
| Aggressive DSM-5 CD symptom scorea (0–16), M, SD | 4.46, 3.67 (28)b | 4.11, 3.50 (36)b | 0.10 (−0.40 to 0.60) | NA | NA | NA |
| Criminal reconvictions | ||||||
| Violent crimec, % (n) | 34% (13) | 23% (10) | 0.30 (–0.24 to 0.84) | 50% (19) | 40% (17) | 0.23 (–0.25 to 0.72) |
| Any crime, % (n) | 71% (27) | 65% (28) | 0.15 (−0.37 to 0.67) | 71% (27) | 74% (32) | −0.09 (−0.63 to 0.45) |
| No. of offense countd, M, SD | 5.61, 8.95 | 3.49, 4.31 | 0.31 (–0.13 to 0.74) | 7.82, 9.05 | 5.14, 6.35 | 0.35 (–0.78 to 0.10) |
Following Cohen (22): Italicized figures denote 0.20 < d < 0.50, a “small” effect size.
Summary score of eight possible DSM-5 Conduct Disorder symptoms scored 0 = never, 1 = 1–2 times or 2 = 3+ times that the participant had acted accordingly during the past 12 months. Based on masked researcher interviews with each participant's social service case manager, the youth himself or both.
Figures within parentheses denote number of subjects with data in each treatment condition.
Included (attempted) homicide, aggravated assault, (aggravated) robbery, (attempted/aggravated) rape, and (aggravated) arson. However, no participants were reconvicted of (attempted) homicide or (attempted/aggravated) rape during follow-up.
Defined as total number of all new counts across all court sentencing occasions during the entire follow-up.