Documented limitationsa | SIBS study features |
---|---|
Few controlled trialsb | Randomized controlled design |
Small sample sizes/insufficient power | A sample of 288 siblings based on power analysis |
Unclear inclusion criteria | Child with ND enrolled in health services is the main inclusion criteria |
Lack of standardized measures | Well-validated measures |
Single raters only (most often parents) | Multi-informant (siblings, parents, teachers, clinicians, observers) |
Cross-sectional/lack of follow-up data | Prospective with multiple assessment points up to 12 months post |
No session description/protocol/manual | Detailed session-by-session manual |
Unclear description of parent involvement | Parallel and joint parent component |
No adherence data | Group leader adherence and competence measured |