Banning mobile phones creates 6.4% of standard deviation improvement in GCSE results: http://cep.lse.ac.uk/_new/publications/abstract.asp?index=4639 ….
@AndrewSabisky @Alby It would be equally amazing if they replicate in new samples too! ;)
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@KirkegaardEmil You sir are the man!@AndrewSabisky@AlbyThanks. Twitter will use this to make your timeline better. UndoUndo
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