The authors report possible diffusion of treatment from ART participants to control children in high-interaction settings, threatening internal validity but indicating a potential positive side-effect¶

Claim · All claims
Evidence · 1 study · causal r2 · q1
Currency · newest study 2014 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q1 i? Changed behaviour in the intervention group may have affected control-group children through day-to-day interaction, an indirect diffusion of treatment. → Koposov 2014

Evidence¶

Koposov 2014¶

Koposov, R., Gundersen, K. K. & Svartdal, F. (2014). Efficacy of Aggression Replacement Training among Children from North-West Russia. International Journal of Emotional Education, 6(1), 14-24. https://www.um.edu.mt/cres/ijee

q1 · i? · causal · r2

Authors' interpretive argument in the Discussion, offered as an explanation for parallel improvements in both groups; it is a reasoned interpretation, not a tested result, and no effect size is attached.

"In our study, children from control and intervention groups had close daily contact and it is likely that those receiving the ART programme applie d their new skills outside the training room."

Discussion¶

Related Claims¶

• Parent and teacher ratings of externalizing problem behaviour decreased from pre to post in both intervention and control groups, with no other significant effects — related