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The problem
Intervention: 12-week therapist-guided, asynchronous, internet-delivered trauma-focused CBT (iTF-CBT) comprising eight modules with parallel caregiver modules and joint activities
Who it was tested with: 22 adolescents aged 13-17 years (82% female) with primary PTSD in Sweden.
The same group is measured before the intervention and again afterwards, with a baseline and an endline and sometimes a midline. Change is visible, but other causes cannot be ruled out.
"Within-group improvements were observed at the primary endpoint, with large reductions on CAPS-CA-5 (Cohen's d=1.27) and CATS-2 (Cohen's d=1.51). At follow-up, 47.6% of participants no longer met criteria for PTSD." The document measured the same group before and after the intervention with standardised clinical assessments, showing symptom change over time.
Single-group design with no control or comparison group; small sample size (n=22); short follow-up period (1 month); unable to determine what proportion of improvement would have occurred naturally without intervention.
Across countries and designs
2 studies · 1 country
