U.S. public schools are implementing widespread cellphone bans that significantly reduce in-class device usage but fail to raise student test scores.
These policies represent a major shift in classroom management across the country. While districts aim to improve student wellness and academic outcomes, the lack of a direct link between phone removal and higher grades challenges the justification for strict enforcement.
Recent data from a study of 40,000 schools [1] indicates that phone bans cut in-class usage by roughly 80 percent [1]. Despite this sharp drop in distraction, the study found that the impact on test scores was statistically negligible, resulting in approximately 0 percent change [1].
"We found that phone bans cut in-class phone usage by roughly 80 percent, but there was no measurable impact on test scores," Dr. Emily Rosen, an NBER researcher, said.
To enforce these rules, many districts in California, Colorado, and Washington have adopted magnetic Yondr pouches [2, 3, 4]. These pouches lock phones away for the duration of the school day. However, the effectiveness of these physical barriers is debated. In Los Angeles, some administrators report that students continue to find ways around the locking systems [2].
"Even with Yondr pouches, students find ways around the system, and we haven't seen any academic gains so far," Principal Laura Martinez of a Los Angeles high school said.
Similar trends are appearing in other major hubs. In Seattle, new rules are currently in effect to curb distractions [5]. Spencer Lee, a Seattle Public Schools spokesperson, said the rules aim to reduce distractions, but early data shows mixed results on learning outcomes [5].
These policies emerge as concerns over youth screen time grow. American children over age eight average three hours of screen time per day [6]. While some officials, such as Gov. J.B. Pritzker in Illinois, have proposed broader bans, the academic evidence remains inconclusive [7].
“Phone bans cut in-class phone usage by roughly 80 percent, but there was no measurable impact on test scores.”
The disconnect between reduced phone usage and stagnant test scores suggests that digital distractions are only one part of a larger academic challenge. While removing devices may improve the classroom environment and social interaction, the data indicates that phone bans alone are not a primary driver of academic achievement.
