Children who owned a mobile phone at age 9 performed less well in tests at age 13, according to new ESRI research funded by the Department of Communications,ESRIClimate Action and Environment and the Commission on Communications Regulation (ComReg).

The research uses data from 8,500 children in the Growing Up in Ireland study to examine the academic performance of children who owned a mobile phone at an earlier age. It finds that children who owned a mobile phone at age 9 scored four per cent less on average in standardised reading and maths tests at age 13.

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