... Change Theory to Plan and Evaluate Programs Evaluation Explanatory Theory THEORY AT A GLANCE Why? What can be changed? ChangeTheory Problem Behavior or Situation Which strategies? Which messages? Assumptions ... INTRO Audience and Purpose Part PART Foundations of Theory in Health Promotion and Health Behavior THEORY AT A GLANCE Why Is Theory Important to Health Promotion and Health Behavior Practice? THEORY ... development, strategic dissemination, and evaluation of relevant, accurate, accessible, and understandable health information, communicated to and from intended audiences to advance the public’s health. 28...