A very, very impressive cluster randomized trial. Very hard to do! See thread for findings.https://twitter.com/Jabaluck/status/1433036923610742789 …
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Gazillion dollars keep getting spent because policymakers have little idea about humans and positive behavior, and also assume Hobbesian breakdown for negative behavior. And neither is really true when you actually get to study anything.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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