Framework
Theory of change and logic model
The question it answers
A programme manager has to show a funder how activities lead to the promised results: what pathway links them, and which indicator tracks each step?
- Origin
- James Bell Associates, 2018
- Diagram type
- Process by phase
- Level of analysis
- Firm

Diagram
Theory of change and logic model
- Theory of change
- Problem and assumptionsState the root problem and what you believe but have not yet proved.
- Desired outcomes and pathwaysLink each activity to an outcome through if-then statements.
- Logic model
- InputsFunding, people, technology, the group served.
- ActivitiesWhat you do to address the problem.
- OutputsImmediately countable results: sessions run, people completing.
- OutcomesChanges in knowledge, behaviour and long-term impact, with indicators to track.
Pitfalls
Pitfall
Writing long-term outcomes while skipping the assumptions that need testing (for example, "customers will sign up" needs real sign-up data).
Sources
References
Listed A–Z by author surname, Harvard style. A source with a DOI links to https://doi.org/…; one without links to its page or says plainly that it has no DOI.
- James Bell Associates (2018) Guide to data-driven decision making: using data to inform practice and policy decisions in child welfare organizations. Washington, DC: Children's Bureau, Administration for Children and Families, U.S. Department of Health and Human Services.No DOIjbassoc.comCited in 1 article