Regression discontinuity design

The following text is drawn from the World Bank's website.

Regression discontinuity design

This is used when a cutoff point on a continuous variable such as a poverty index is used to determine who receives a given project. The impact of the project can then be estimated by comparing outcomes for beneficiaries who just qualify for the project on this score, with outcomes for individuals who just fail to qualify for the project given their score.


Source: The World Bank http://go.worldbank.org/J35S3J8B60