[CNN] Kids perform better when schools ban smartphones study shows

South Korean middle school students use their smartphones at a bus station in Seoul, South Korea, Friday, May 15, 2015. (AP Photo/Ahn Young-joon)

[CNN]

Do you want your children to do better in exams? Then take away their smartphones. (Sorry, kids!)

Schools that ban students from carrying phones see a clear improvement in their test scores, according to a study by the London School of Economics.

“We found the impact of banning phones for these students equivalent to an additional hour a week in school, or to increasing the school year by five days,” researchers Richard Murphy and Louis-Philippe Beland said.

The authors looked at how phone policies at 91 schools in England have changed since 2001, and compared that data with results achieved in national exams taken at the age of 16. The study covered 130,000 pupils.

It found that following a ban on phone use, the schools’ test scores improved by 6.4%. The impact on underachieving students was much more significant — their average test scores rose by 14%.

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