Is there an allegiance bias on the efficacy of systemic therapy? A three-level meta- regression analysis

Key Points

• The research aims to explore the effects of researcher allegiance on the efficacy of systemic therapy (ST) for children and adolescents.
• Conducted a three-level meta-regression analysis.
• Investigated the influence of researcher allegiance on ST outcomes.
• Assessed risk of bias (RoB) in ST for adults.
• Identified allegiance bias affecting efficacy perceptions in ST for children and adolescents.
• Highlighted the importance of transparency in research methods.
• Emphasized the necessity of replication efforts in future studies.