In addition to the different types of program theories illustrated in the preceding presentations, there is of course the possibility of mixing different types of program theories. Each type of program theory provides unique strengths that, when used together, can add value to program planning and evaluation. This presentation will provide different examples of hybrid (or blended) program theories, that is, program theories integrating different types of models into a single program theory. Hybrid program theories allows us to examine and understand programs in different, but complementary, ways. Hybrid models are particularly advantageous in the context of complex or large-scale programs, where the ability to differentiate the modeling strategy facilitates a more nuanced depiction of the program. By combining different types of models, the developed program theory can be tailored to the specific needs of the program or evaluation. Benefits and limitations of hybrid program theories will be discussed.
