Do School Phone Bans Work? What New Research Says About Kids, Screens, and School

As school phone bans in 26 states from New York to California have swept the country this past year, with more, or stricter versions, on the way — with a surprising 41% of teens supporting them — one question keeps coming up: Do they actually work? The answer is complicated.

The Biggest Study Yet Takes a Closer Look

A new working paper from the National Bureau of Economic Research, “The Effects of School Phone Bans: National Evidence from Lockable Pouches,” is the most comprehensive attempt yet to answer that question. For it, the researchers analyzed data from thousands of schools across the U.S., focusing on what happens when schools adopt strict or “bell to bell” phone restrictions, particularly with lockable pouches that prevent students from accessing their devices at all during the school day.

The findings are clear in one way and surprisingly complicated in others:

First, the obvious: When schools take phones away, kids use them less. A lot less. Teacher reports show in-class phone use dropping dramatically — from a majority of students to a small fraction. Even device tracking data backs it up, showing a meaningful decline in phone activity during school hours.

So if the goal is to get phones out of kids’ hands, these policies do exactly that. Check.

But other parts of the report get more nuanced. One of the most striking findings from the study is what happens in the first year after a ban is introduced. Instead of immediate improvements, schools often see disruption. Disciplinary incidents actually increase at first, rising noticeably in the year a ban is implemented. Students also report a dip in their overall sense of well-being during that initial period.

It’s not hard to imagine why. For many kids, phones aren’t just a distraction. They’ve become a constant companion. Taking that away all at once changes how they socialize, how they pass time, and how they manage stress or boredom. There’s an adjustment period, and it’s not always pretty. I’ve seen it with my own eyes when we try to scale back our daughter’s weekend screen time, and she’s only 10 and has never even used a device during school hours.

This early spike in discipline may be tied not just to behavior changes, but to enforcement itself, suggested The New York Times in its report of the study. More rules can mean more opportunities for students to break them.

Over Time, Something Shifts

While the short-term effects may feel discouraging, the longer-term picture looks different.

As time goes on, students appear to adjust, according to the report. The study found that after that initial dip, well-being begins to rebound and eventually improves beyond pre-ban levels.

That finding lines up with what many parents hope will happen. Less social comparison, fewer digital pressures, and more real-life interaction during the school day. But the key word here is time. The benefits don’t show up immediately. They emerge after students have had a chance to adapt to a new normal.

Academics Don’t Change Much

Limiting or eliminating phone use isn’t the answer to academic challenges, however. If phone bans are expected to boost grades, the research offers a reality check. Across the board, the study found that test scores remained largely unchanged after schools implemented phone restrictions. There were some small differences depending on age:

Overall, the academic impact was minimal. The New York Times noted that this challenges a common assumption: that phones are the primary obstacle to learning. Removing them doesn’t automatically translate into better educational performance. 

The takeaway from all of this is that phone bans are neither poison nor panacea, but one piece of a much larger puzzle. Taking phones away reduces phone use. (Absolutely.) It may improve mental health over time. (Who wouldn’t want that?) But it also introduces short-term challenges and doesn’t dramatically shift academic outcomes on its own.

In other words, kids don’t magically become more focused or engaged just because their phones are gone. They redirect that energy somewhere else — sometimes into conversation, sometimes into distraction, and sometimes into behavior that schools then have to manage.