A classroom phone ban sounds like the kind of rule students would tolerate at best and resent at worst. But a large experiment in India found an unexpected twist: after students experienced phone-free classes, they became more supportive of the restrictions themselves.
The study, published October 8 in Science, involved 16,683 students at 10 higher-education institutions in Odisha, India. Researchers randomly assigned students to classrooms with smartphone restrictions or to classes operating as usual, allowing them to compare outcomes rather than simply survey students’ opinions about their devices.
Academic performance improved in the phone-restricted classrooms, particularly among lower-performing students and first-year undergraduates. The grade gap narrowed. Classroom observations also recorded fewer disruptions and off-topic conversations, along with stronger teacher engagement. Attendance did not significantly change, suggesting that what happened inside the classroom mattered more than how often students showed up.
The effects were not uniform. Higher-performing students, postgraduate students and those in STEM programs saw relatively little academic improvement. Yet the attitude finding reached beyond the students whose grades benefited most: experiencing the restrictions made students more likely to see value in them and less likely to prefer unrestricted access.
That raises a question bigger than whether phones distract students: How reliable is opposition to a rule before people have lived with the alternative? We often treat immediate access to a smartphone as a practical necessity. But a class in which everyone puts the device away may change what students consider normal, and what they discover they prefer.
For New Jersey families, the timing is hard to miss. State legislation requires public school districts to adopt bell-to-bell limits on nonacademic use of cellphones and other personal internet-enabled devices, subject to exceptions. The state Education Department issued updated implementation guidance in January 2026; local districts have flexibility in how devices are stored and rules are enforced.
The comparison needs an important boundary. Researchers studied college students in India, not New Jersey children in elementary, middle or high schools. The findings cannot predict how every New Jersey district’s policy will affect grades, mental health or student attitudes. Nor do they show that all technology use is harmful or that phones have no educational value.
What the experiment does show is that the experience of a restriction can change the conversation about the restriction. A policy students might initially regard as a loss can, in practice, give them a different way to judge the trade-off: not just what they can no longer check, but what they can finally pay attention to.
Sources and reporting notes
AAAS / EurekAlert! research announcement (Oct. 8, 2026): https://www.eurekalert.org/news-releases/1146437
Science, “Phones impede learning: Evidence from a massive phone-free classroom experiment” (DOI): https://doi.org/10.1126/science.aef7249
New Jersey Department of Education, bell-to-bell guidance announcement (Jan. 15, 2026): https://www.nj.gov/education/news/2026/NJDOEReleasesUpdatedGuidelinesonBellToBellPoliciesToProhibitStudentUseOfCellPhonesInSchools.pdf
AAAS / EurekAlert! research announcement (Oct. 8, 2026): https://www.eurekalert.org/news-releases/1146437