📊 Stages of an Impact Evaluation | A MEAL Learning Note

 

How do we know whether a program is creating the intended change?

Impact evaluation helps us assess whether an intervention achieves its intended results, for whom, and whether the observed changes can be attributed to the intervention.

Understanding the key stages of an impact evaluation is essential for effective program planning and evidence-based decision-making.

🔹 1. Program Planning
Develop the program theory or Theory of Change, define evaluation questions, and determine the appropriate evaluation design and methodology.

🔹 2. Baseline Assessment
Collect data before the intervention begins to establish the initial conditions against which subsequent changes can be assessed.

🔹 3. Midline Assessment
Collect data during implementation, where appropriate, to examine emerging changes, identify trends, and inform program learning and adaptation.

🔹 4. Endline Assessment and Impact Analysis
Collect data at the planned evaluation point, compare findings with baseline results and, where appropriate, a comparison group, and assess the extent to which the intervention contributed to observed changes.

💡 My key learning as a MEAL professional:

Impact evaluation is not simply about comparing baseline and endline data. It requires a well-designed methodology to understand what changed, for whom, why it changed, and whether the intervention made a difference.

Better evaluation design → Stronger evidence → Better program decisions.

I’m continuing to strengthen my knowledge of MEAL, impact evaluation, and evidence-based programming. I welcome recommendations for relevant courses and learning resources.

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