Treatment effect modifiers in a randomized trial of the good behavior game during middle childhood.
- 1 August 2021
- journal article
- research article
- Published by American Psychological Association (APA) in Journal of Consulting and Clinical Psychology
- Vol. 89 (8), 668-681
- https://doi.org/10.1037/ccp0000673
Abstract
Objective: Two key treatment effect modifiers-implementation variability and participant cumulative risk status-are examined as predictors of disruptive behavior outcomes in the context of a large cluster randomized controlled trial of a universal, school-based behavior management intervention. The core components of the Good Behavior Game (GBG) are classroom rules, team membership, monitoring behavior, and positive reinforcement. Children work in teams to win the game, which is played alongside a normal classroom activity, during which their teacher monitors infractions to classroom rules. Teams with four or fewer infractions at the end of the game win and are rewarded. Method: Seventy-seven English primary schools (N = 3,084 children, aged 6-7) were randomly assigned to deliver the GBG or continue their usual practice over 2 years. Results: Intent-to-treat analysis found no discernible impact of the intervention on children's disruptive behavior. Additionally, subgroup analyses revealed no differential gains among children at low, moderate or high levels of cumulative risk exposure (CRE). However, complier average causal effect estimation (CACE) using dosage as a compliance marker identified a large, statistically significant intervention effect (d = -1.35) among compliers (>1,030 min of cumulative intervention exposure). Furthermore, this compliance effect varied by participant CRE, such that children at high and low levels of exposure experienced significantly greater and lesser reductions in disruptive behavior, respectively. Conclusions: These findings highlight the importance of optimizing implementation and demonstrate the utility of CRE as a theoretically informed approach to subgroup moderator analysis. Implications are discussed and study strengths and limitations are noted.This publication has 42 references indexed in Scilit:
- Interpretation of Subgroup Effects in Published TrialsPTJ: Physical Therapy & Rehabilitation Journal, 2013
- Statistical notes for clinical researchers: assessing normal distribution (2) using skewness and kurtosisRestorative Dentistry & Endodontics, 2013
- Estimation and Identification of the Complier Average Causal Effect Parameter in Education RCTsJournal of Educational and Behavioral Statistics, 2011
- The ecological effects of universal and selective violence prevention programs for middle school students: A randomized trial.Journal of Consulting and Clinical Psychology, 2009
- Employing Complier Average Causal Effect Analytic Methods to Examine Effects of Randomized Encouragement TrialsThe American Journal of Drug and Alcohol Abuse, 2009
- The Multisite Violence Prevention Project: Impact of a Universal School-Based Violence Prevention Program on Social-Cognitive OutcomesPrevention Science, 2008
- Implementation Matters: A Review of Research on the Influence of Implementation on Program Outcomes and the Factors Affecting ImplementationAmerican Journal of Community Psychology, 2008
- Cluster randomized trials with treatment noncompliance.Psychological Methods, 2008
- Effect Sizes in Cluster-Randomized DesignsJournal of Educational and Behavioral Statistics, 2007
- Is there a "school effect" on pupil outcomes? A review of multilevel studiesJournal of Epidemiology and Community Health, 2006