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Tuesday, September 5 • 09:30 - 10:30
Intervention logic: putting the logic back in logic models

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Andrew Hawkins (ARTD Consultants)

Program logic is often conceived of as a model of a program's theory of change. This presentation argues that while logic and theory are very useful in evaluation, conflating the two leads to under-developed theory and over-extended logic. 

The presentation will start with a brief discussion of program theory, theories of change, and causal mechanisms. A theory may be as simple as a few sentences describing how and why a program is intended to work, or as in-depth as a collection of realist context-mechanism-outcome configurations. They differ in their level granularity. They share the common function of explaining why we expect change to occur. 

We will then visit the philosophy of causality to argue that program logic comprised of a series of boxes and arrows falsely implies that A leads to, or generates B (e.g. awareness of the program does not lead to participation in the program). Instead we will propose that a configurationist approach to causality with necessary and sufficient conditions provides a more useful underpinning to program logic than one implying a sequence of cause and effects.

The first step in intervention logic is diagramming the conditions considered necessary for achieving program outputs, and the assumptions we are relying on for this to hold. The second is diagramming the conditions that these outputs and assumptions must be sufficient for generating. The third is diagramming the conditions or outcomes these outputs should contribute to, along with the effects of external factors. By giving explicit attention to the interplay between aspects the program has relative control over (inputs and activities) and those that it does not (assumptions, external factors) this approach provides a holistic model of how an intervention is intended to be effective. Please bring a program logic you have developed to the presentation.


Ann Munene

Sr. Advisor DME & Research, Education, World Vision International
Currently the Sr. Design, Monitoring, Evaluation &Research Advisor for Education at World Vision International, based in Melbourne Australia. Holds a PhD in Educational Measurement Research & Evaluation (EMRE) and a Master’s degree in Educational Research & Evaluation. Passionate... Read More →


Andrew Hawkins

Partner, ARTD Consultants
Andrew works as a trusted advisor and strategic evaluator for public policy professionals, generating insight and evidence for decision-making. Andrew has worked for a wide range of Australian and NSW public sector agencies and not-for-profits on the design, monitoring and evaluation... Read More →

Tuesday September 5, 2017 09:30 - 10:30 AEST
Murray Room – first floor