GiveWell and water-treatment evidence
GiveWell staff publicly described our evaluation of an important water-treatment meta-analysis as influential. They said it saved time they had considered spending on a replication, and a research director later confirmed that the evaluation was useful. It found no major failure, while flagging excluded studies and other issues relevant to interpreting the result.
The evidence concerns a program area in which GiveWell had recommended a $64.7 million safe-water grant, alongside later grants and research. That grant predated our evaluation; the figure indicates the scale of the decision context, not funding caused by The Unjournal.
Evaluation package · GiveWell's evidence review · Safe-water grant · Public discussion