PRECEDE-PROCEED can be thought of as a road map and behavior change theories as the specific directions to a destination. The road map presents all the possible avenues, whereas the theory suggests certain avenues to follow. Unlike the theories described in previous chapters, the main purpose of the PRECEDE-PROCEED Model is not to predict or explain the relationship among factors thought to be associated with an outcome of interest. Rather, its main purpose is to provide a structure for applying theories and concepts systematically for planning and evaluating health behavior change programs. In Green and Kreuter’s most recent version of the model (Green and Kreuter, 2005), they make the point that the numerous applications and validations of PRECEDE-PROCEED support calling it a model and qualifying it as a theoretical or causal model in some of its applications. The authors also distinguish between causal theory that seeks to identify the determinants of an outcome and action theory that attempts to explain how interventions affect the determinants and outcomes. Together, causal and action theories make up program theory, depicted as logic models. PRECEDE-PROCEED is an example of a logic model, in that it links the causal assessment and the intervention planning and evaluation into one overarching planning framework. We will use the terms model and framework interchangeably in reference to PRECEDE-PROCEED and reserve the use of the term theory for causal theories such as the Theory of Planned Behavior (TPB) and the Health Belief Model (HBM).