Primary School Deworming in Kenya

This evaluation by The Abdul Latif Jameel Poverty Action Lab (J-PAL) used random phase-in RCT to evaluate a school de-worming program in Kenya.

For three years, between 1998 and 2001, mass deworming was rolled out in 75 schools in western Kenya by the NGO International Child Support Africa. The 75 schools were placed in a lottery, with 25 schools receiving deworming in 1998, 25 in 1999, and the remaining 25 in 2001. In this way, in 1998, the 50 non-dewormed schools served as a control group for the 25 dewormed schools.


The Abdul Latif Jameel Poverty Action Lab (J-PAL). (2001). Primary school deworming in Kenya. Retrieved from

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