The authors of the study of 8,000 children say long periods of unsupervised time using the internet, watching TV or playing computer games have a negative impact on students.

Children who have smartphones and spend long periods of time playing computer games are performing relatively poorly in reading and maths, new research shows.

The findings are contained in a study of 8,000 children in 150 primary schools across Ireland which assessed students’ reading and maths performance.

Overall, the study found that parents have a major impact on their children’s performance, with pupils performing better in homes where there are rules over completing homework.

Access to technology is not necessarily a negative factor. For example, children who have access to broadband and educational games perform better than those who do not…