Summary
The episode works through four questions that students often find difficult in program evaluation and in the use of theory in health promotion work. It shows how process data and measures of a theory's constructs let an evaluator tell an implementation failure from a theory failure, and why attendance belongs with the outputs of a logic model. It then uses Vancouver's supervised injection site evaluation and an invented two-district vaping example to show what a comparison group can and cannot remove, including a local policy change that the design cannot separate from the program's effect. It closes by appraising an invented grant application and by debating whether funders should require model programs from evidence registries.