24 September 2018
WSSCC, 3ie Map Evidence for Effectiveness of WASH Interventions
UN Photo/JC McIlwaine
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The Water Supply and Sanitation Collaborative Council and the International Initiative for Impact Evaluation have published an “evidence gap map” that compiles results from evaluations of water, sanitation and hygiene projects around the world.

WSSCC and 3ie analyzed the results of 41 reviews and 317 evaluations to discern the impacts of WASH interventions on health, behavior, and socio-economic outcomes.

WSSCC and 3ie have a partnership that is supporting rigorous evaluations of WASH programmes to inform the policy and practice in the sector.

September 2018: The Water Supply and Sanitation Collaborative Council (WSSCC) and the International Initiative for Impact Evaluation (3ie) have published an “evidence gap map” that compiles results from evaluations of water, sanitation and hygiene (WASH) projects around the world. The study finds that WASH access for persons with disabilities has been little studied, and that latrine access for non-binary or transgender persons has not been addressed in rigorous evaluations.

The study is an update of a previous mapping exercise conducted in 2014, the year that 3ie was established with funding from the Japan International Cooperation Agency (JICA). WSSCC and 3ie analyzed the results of 41 reviews and 317 evaluations to discern the impacts of WASH interventions on health, behavior, and socio-economic outcomes.

The study results, available online, can be filtered by the type of outcomes, as well as by region, country, study design, population type (such as urban, rural, and slum, for example), and type of intervention.

WSSCC reports that the purpose of the mapping is to make available evidence-based impact evaluations of WASH, which are not published in academic literature. WSSCC and 3ie have a partnership that is supporting rigorous evaluations of WASH programmes to inform the policy and practice in the sector.

SDG 6 includes commitments to achieving safe drinking water for all by 2030 (SDG target 6.1), achieving adequate and equitable access to sanitation and hygiene, and ending open defecation, with particular attention to the needs of women, girls and those in vulnerable situations (SDG target 6.2). [WSSCC Press Release] [3ie Evidence Gap Map]

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