Diffusion theory posits that information is disseminated throughout a social network by the persuasion of key opinion leaders (KOLs). This study examined the relative and combined influence of peer-identified KOL teachers (n = 12) and mental health providers (n = 21) on classroom teachers' (n = 61) self-reported use of commonly recommended classroom practices for children with attention-deficit/hyperactivity disorder in 6 low-income urban African American communities, relative to teachers (n = 54) at 4 matched schools who received mental health provider consultation only. Mixed-effects regression models showed that KOLs in collaboration with mental health providers promoted higher rates of teachers' self-reported use of recommended strategies than mental health providers alone, and that these effects were mediated by KOL support but not by mental health provider support. The results suggest an expanded role for KOL teachers as indigenous and natural supports for the dissemination and implementation of school-based mental health programs.

Dissemination and implementation science (DI) has evolved as a major research model for children's mental health in response to a long-standing call to integrate science and practice and bridge the elusive research to practice gap. However, to address the complex and urgent needs of the most vulnerable children and families, future directions for DI require a new alignment of ecological theory and public health to provide effective, sustainable, and accessible mental health services. We present core principles of ecological theory to emphasize how contextual factors impact behavior and allow for the reciprocal impact individuals have on the settings they occupy, and an alignment of these principles with a public health model to ensure that services span the prevention to intervention continuum. We provide exemplars from our ongoing work in urban schools and a new direction for research to address the mental health needs of immigrant Latino families. Through these examples we illustrate how DI can expand its reach by embedding within natural settings to build on local capacity and indigenous resources, incorporating the local knowledge necessary to more substantively address long-standing mental health disparities. This paradigm shift for DI, away from an overemphasis on promoting program adoption, calls for fitting interventions within settings that matter most to children's healthy development and for utilizing and strengthening available community resources. In this way, we can meet the challenge of addressing our nation's mental health burden by supporting the needs and values of families and communities within their own unique social ecologies.

This study examined a school- and home-based mental health service model, Links to Learning, focused on empirical predictors of learning as primary goals for services in high-poverty urban communities. Teacher key opinion leaders were identified through sociometric surveys and trained, with mental health providers and parent advocates, on evidence-based practices to enhance children's learning. Teacher key opinion leaders and mental health providers cofacilitated professional development sessions for classroom teachers to disseminate 2 universal (Good Behavior Game, peer-assisted learning) and 2 targeted (Good News Notes, Daily Report Card) interventions. Group-based and home-based family education and support were delivered by mental health providers and parent advocates for children in kindergarten through 4th grade diagnosed with 1 or more disruptive behavior disorders. Services were Medicaid-funded through 4 social service agencies (N = 17 providers) in 7 schools (N = 136 teachers, 171 children) in a 2 (Links to Learning vs. services as usual) × 6 (pre- and posttests for 3 years) longitudinal design with random assignment of schools to conditions. Services as usual consisted of supported referral to a nearby social service agency. Mixed effects regression models indicated significant positive effects of Links to Learning on mental health service use, classroom observations of academic engagement, teacher report of academic competence and social skills, and parent report of social skills. Nonsignificant between-groups effects were found on teacher and parent report of problem behaviors, daily hassles, and curriculum-based measures. Effects were strongest for young children, girls, and children with fewer symptoms. Community mental health services targeting empirical predictors of learning can improve school and home behavior for children living in high-poverty urban communities.