” The Stage Model is a model of behavioral intervention development composed of six stages: basic science (Stage 0), intervention generation, refinement, modification, and adaptation and pilot testing (Stage I); traditional efficacy testing (Stage II); efficacy testing with real-world providers (Stage III); effectiveness research (Stage IV) and; dissemination and implementation research (Stage V). Examination of mechanisms of behavior change is encouraged in every stage of intervention development. Consideration of the intervention’s ease of implementation is encouraged as early as possible in the intervention development process. The ultimate goal is to produce highly potent and maximally implementable behavioral interventions that improve health and well-being.” – NIH

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