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, 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…

Evidence-based interventions are being disseminated broadly in schools across the U.S., but the implementation levels achieved in community settings vary considerably. The current study examined the extent to which teacher and school factors were associated with implementation dosage and quality of the PAX Good Behavior Game (PAX GBG), a universal…

Attention-deficit/hyperactivity disorder (AD/HD) negatively affects the cognitive and psychomotoric spheres of the pupil's social behavior and social adaptation. The review of many studies states that pupils with AD/HD achieve worse learning results because of insufficiently functioning cognitive processes, such as attention, (work) memory,…