Ben_Kuhn comments on Matching-donation fundraisers can be harmfully dishonest - Effective Altruism Forum

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Comment author: Ben_Kuhn 16 November 2016 04:42:17AM 6 points [-]

The difference between matching and challenge grants was not statistically significant, actually. More generally, that study's evidence is suggestive at best; it was underpowered (couldn't have distinguished a 30% increase in donations from noise) and didn't correct for multiple (12 in the field, 10 in the lab) hypothesis tests. They also mis-described what a p-value means, which doesn't directly invalidate their results but makes me pretty generally worried.