Tag Archives: funnel of attrition

Using the causal chain to make sense of the numbers

| February 12, 2013

At 3ie, we stress the need for a good theory of change to underpin evaluation designs. Many 3ie-supported study teams illustrate the theory of change through some sort of flow chart linking inputs to outcomes. They lay out the assumptions behind their little arrows to a varying extent. But what they almost invariably fail to
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