Skip to main content

RE: Impact Evaluation: How far have we come?

Rahel Kahlert

Austria

Rahel Kahlert

Senior Evaluation Officer

IAEA

Posted on 03/05/2024

Dear Daniel!

I enjoyed reading your thoughtful comments. We agree that the CGD's report is based on a particular scientific paradigm, as Vedung (2010) called it the first scientific wave.

Surprising to me was that the CGD report--although based on an old paradigm--startled the evaluation community widely to a high degree. Evaluation societies felt an obligation to respond. In this sense, the CGD report positively influenced the further development of more robust qualitative (causal) methods in evaluation. Evaluators developed and refined theory-based approaches, process tracing, contribution analysis and thus made a positive contribution to the evaluation field. Without the CGD report, we (myself included) probably would not have been part of such a flourishing process of tackling causality in evaluation.