3ie ~ International Initiative for Impact Evaluation

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Impact Evaluation Repository

The Impact Evaluation Repository is an index of all published impact evaluations of development interventions.

All studies in the Impact Evaluation Repository have been screened to ensure they meet 3ie’s inclusion criteria . The summaries of impact evaluations in this repository are written by 3ie’s qualified team of technical consultants.

For an impact evaluation to be included in the Repository, it must be published (as a journal article, book chapter, report, or working paper), take place in a developing country, examine the effectiveness of a specific development intervention, and use an approved experimental or quasi-experimental estimation strategy. Between 2012 and 2014, 3ie undertook a systematic search of over 45 databases, search engines, journal collections, and websites to locate all the impact evaluations ever published. We then reviewed more than 60,000 potential studies to finally arrive at an index of over 2,400 published impact evaluations. These impact evaluations have been carried out over the span of the last three decades in more than 120 countries.

The launch of 3ie’s newly revamped Impact Evaluation Repository is a major milestone as it marks the culmination of the first systematic attempt to capture all published impact evaluations in the international development sector.

3ie is committed to ensuring that the Impact Evaluation Repository stays up to date with the newest, most policy influential studies available. If you know of an impact evaluation that meets our inclusion criteria and should be included in the Impact Evaluation Repository, let us know at database@3ieimpact.org.

To find out more about 3ie’s search and screening protocol, read the

3ie announces winners of the Impact Evaluation Repository challenge 

We are happy to announce the winners of the Impact Evaluation Repository challenge. View the list of 16 winners of the challenge, as well as all the accepted impact evaluations here

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