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This post looks at types of logic models. It is one in a series about logic models and competitive grant seeking. Its context is the United States of America. Other posts discuss the uses of logic models throughout proposal planning and project implementation, benefits of logic models, definitions of logic models, typical structures and elements for logic models, samples of logic models, and other topics.



Logic models are not all the same. There are at least three basic types, each with its own focus. Logic models can be created as single-focus constructs, or as constructs that combine two or more focuses. The best ones fit and reflect the needs of both the grant seeker and the specific funding opportunity.


Theory Models focus on the theory of change that underlies the design and work plan for a project. They are useful for identifying assumptions in selecting strategies and for linking them to activities. They are also useful in linking a research-based rationale to specific action steps.


Activities Models tend to focus on the specifics of implementation and the sequencing and coordination of planned activities. They are particularly useful for monitoring implementation and for project management.


Outcomes Models try to connect inputs and/or activities with desired results. They also sort outcomes and impacts over time (e.g., short-term, mid-term, and long-term). They are useful for developing plans for evaluation and other purposes related to accountability.


The table below sums up each type of model:

Types Key Questions Time Focuses Uses
Theory Why?


Future Selecting strategies

and forecasting

Activities What?



Present Monitoring

and coordinating

Outcomes So What?

How Well?

Past Evaluation

and reporting


For a more complete understanding of logic models, be sure to look for coming posts – particularly those about the structure of logic models and about samples of logic models.





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