The Highlander (University of California, USA):
Banning cell phones at schools will only result in good
2 October 2017
For instance, as reported by the Guardian, a 2015 study called “Ill Communication: Technology, Distraction & Student Performance” found that, after schools banned mobile phones, the test scores of students improved by 6.4 percent. According to the Centre for Economic Performance, which published the study, this is equivalent to adding five days of instruction to the school year.