Interestingly both the initial positive and later negative effects could be explained by a "resource curse" similar to what is hypothesized for nation states.
RCT of 3000 kids for pre-k program finds that.. really long drum roll.... it doesn't have any positive lasting effects by grade 2/3. Worse, it might have small negative effects on various things like placement in special ed and disciplinary infractions. https://www.sciencedirect.com/science/article/pii/S0885200618300279 …pic.twitter.com/eqE3OVW4Oz
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Currently one of the go-to articles for Vox people, in particular the sibling comparisons.
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