Using Complier Average Causal Effect Estimation to Examine Student Outcomes of the PAX Good Behavior Game When Integrate

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ORIGINAL ARTICLE

Using Complier Average Causal Effect Estimation to Examine Student Outcomes of the PAX Good Behavior Game When Integrated with the PATHS Curriculum Catherine P. Bradshaw1 · Kathan D. Shukla2 · Elise T. Pas3 · Juliette K. Berg4 · Nicholas S. Ialongo3

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Abstract A growing body of research has documented a link between variation in implementation dosage and outcomes associated with preventive interventions. Complier Average Causal Effect (CACE; Jo in J Educ Behav Stat 27:385–409, 2002) analysis allows for estimating program impacts in light of variation in implementation. This study reports intent-to-treat (ITT) and CACE findings from a randomized controlled trial (RCT) testing the impacts of the universal PAX Good Behavior Game (PAX GBG) integrated with Promoting Alternative Thinking Strategies (i.e., PATHS to PAX) and PAX GBG only compared to a control. This study used ratings by 318 K-5 teachers of 1526 at-risk children who, at baseline, were rated as displaying the top 33rd percentile of aggressive-disruptive behavior. Leveraging a prior study on these data (Berg et al. in Admin Policy Ment Health Ment Health Serv Res 44:558–571, https​://doi.org/10.1007/s1048​8-016-0738-1, 2017), CACE was defined as the effect of intervention assignment for compliers, using two compliance cut points (50th and 75th percentile), on posttest ratings of student academic engagement, social competence, peer relations, emotion regulation, hyperactivity, and aggressive-disruptive behavior. The ITT analyses indicated improvements for students in the integrated condition on ratings of social competence compared to the control condition. The CACE analyses also indicated significant effects of the integrated intervention on social competence, as well as academic engagement and emotion regulation for students in high compliance classrooms. These findings illustrate the importance of considering variation in implementation within the context of RCTs. Keywords  Prevention · Schools · Implementation · Causal inference · Randomized controlled trial

Introduction * Catherine P. Bradshaw [email protected] Kathan D. Shukla [email protected] Elise T. Pas [email protected] Juliette K. Berg [email protected] Nicholas S. Ialongo [email protected] 1



Curry School of Education and Human Development, University of Virginia, Charlottesville, VA, USA

2



Indian Institute of Management, Ahmedabad, Gujarat, India

3

Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA

4

American Institutes for Research, Washington, DC, USA



Universal preventive interventions are widely used in schools with the goal of improving a variety of student academic and behavioral outcomes. Despite increased interest and uptake in such preventive interventions, ensuring high fidelity of these interventions, particularly when used in real-world settings, remains a challenge (Domitrovich et al. 2008). Such implementation challenges are also often encountered in school-bas