The Reciprocal Relationship Between Implementation Theory and Program Theory in Assisting Program Design and Decision-Making

The focus of this article is how Theory Driven Evaluation (TDE) and two of its central tenets—program theory and implementation theory—can be simultaneously used to inform and assist programmatic decision-making. The article argues there is a paucity of evaluation literature demonstrating how program theory can be beneficial to the design and interpretation of implementation theory. A case example is used to illustrate the importance of program theory in developing and interpreting implementation theory.