Fig. 1From: Development, inter-rater reliability and feasibility of a checklist to assess implementation (Ch-IMP) in systematic reviews: the case of provider-based prevention and treatment programs targeting children and youthConceptual framework for developing program theory. Source: Chen H-T. Practical Program Evaluation. Thousand Oaks, CA: Sage Publications, 2005. Reprinted with permission from Sage PublicationsBack to article page