"The effects of mobile phone use on academic performance: A meta-analysis" [0]
"Results indicate the summary effect of mobile phone use on student outcomes is r = −0.16 with 95% CI of −0.20 to −0.13."
[0] https://www.sciencedirect.com/science/article/abs/pii/S03601...
Refers to a more recent meta analysis from 2023 of 12000 kids and basically found no substantial negative effects from screen time
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"The effects of mobile phone use on academic performance: A meta-analysis" [0]
"Results indicate the summary effect of mobile phone use on student outcomes is r = −0.16 with 95% CI of −0.20 to −0.13."
[0] https://www.sciencedirect.com/science/article/abs/pii/S03601...