Cellphones in schools hurt low-performing students

Teenagers depend on their cell phones for keeping up with friends and trends on social media. But should they be allowed to have them in school? A study from the London School of Economics for the first time provided hard evidence that banning phones in school boosts student achievement. The study found that, in schools that banned mobile phones, student scores on standardized tests went up 6.4 percent on average. Lower performing students benefited the most from phone bans.

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