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How Phone Bans Are Changing Classrooms

April 03, 2026 / 12:09

This episode discusses the impact of cell phone policies in schools, featuring Angela Duckworth, a professor at the Wharton School. Topics include the effects of cell phone use on academic achievement, social development, and mental health among students.

Angela Duckworth shares insights from her ongoing research, the Phones in Focus study, which surveys over 100,000 teachers across the United States. The study reveals a trend towards stricter cell phone policies in schools, particularly in middle and high schools.

Duckworth highlights that teachers report higher satisfaction in schools with stricter phone policies, noting a decrease in student phone usage during class. She emphasizes the importance of where students keep their phones, indicating that having phones stored away reduces temptation.

The conversation also touches on the broader implications of technology on mental health, particularly for Gen Z, and the role of parents in shaping their children's environments. Duckworth encourages parents to influence their local school cultures positively.

Finally, Duckworth outlines the next steps in her research, which includes matching survey data with student achievement and well-being metrics to identify effective cell phone policies in schools.

TLDR

Angela Duckworth discusses the impact of stricter cell phone policies in schools on student behavior and mental health.

Episode

12:09
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We know the value but also the impact that cell phones have on our kids. And this past year saw numerous school
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districts announcing new rules about preventing the use of cell phones by kids, by students during the school day.
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With those in place, what does that mean for how the dynamics of the school day are going for students? That research is
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being conducted by our guest today, Angela Duckworth, along with a group of her colleagues. It is a phones in focus
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study. Angela is professor of operations, information, and decisions here at the Wharton School, as well as
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co-director of the Behavior Change for Good Initiative. Angela, great to catch up again. How are you? Hi, good to see
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you. I'm very happy to have this conversation. Yeah, so this is the second conversation
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we're having on this topic as this research continues to develop. Let me circle back for people that didn't join
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us the first time and talk about what was the basis behind doing the research into this in the first place.
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I'm a psychologist who's been studying self-control and grit and achievement
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for her entire career. I'm also a former high school and middle school math teacher. And finally, I'm a mom. I have
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two daughters who are now in their early 20s. And for all of those reasons, I felt called really to do a study on cell
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phones and in particular cell phones and young people in schools. My own daughter
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said, "Mom, you know, this is what you trained for. Like your whole life you
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learned to become a social scientist to help kids. So you have [snorts] to study
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what's going on with kids and phones and in particular academic and academic
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achievement, I should say. When we talk about schools, it's not just academic
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achievement. It's also social social development. You know, what effect having phones with you all the time has
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on your ability to develop friendships or you know, relationships with mentors like teachers.
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Okay, so with these school districts that are obviously changing these rules and trying to make sure that students
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aren't relying on their cell phones during the school day, what are we starting to see in terms of how that
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daily relationship is working not only with their classmates, but I think with the teachers as well.
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We have a survey. It's still live. And so if you're listening to this conversation and you know or you are a
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school teacher in a US public K-12 school, you're welcome to take the 5-minute survey at phonesinfocus.org.
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Here's what we're learning. We have over 100,000 teachers. That's a significant
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percentage of teachers in the United States who have done exactly that. And what we're finding first of all is a sea
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change in policy from last year to this year. So even just in the few months that have passed since last academic
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year to this academic year, what we're finding is that schools across this country are getting more strict with
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their cell phones. They're more likely, for example, to have a bell-to-bell policy, meaning that students at that
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school are not allowed to use their phone from the first bell to the last bell. And we're seeing most of that
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change happen in, for example, the middle and high schools because elementary schools typically have
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stricter policies, so they were already strict. But we're seeing American high
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schools, for example, shift to this new stricter policy. Second thing that we're
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finding is that the stricter the policy, the happier the teacher. So these teachers, 100,000 teachers, are saying
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overwhelmingly that they prefer to teach in school. They're They're more
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satisfied teaching in schools that have stricter policies. And finally, when we ask these teachers, "What percentage of
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kids, from 0% to 100%, would you guess are on their phones for non-academic reasons during class?" And we we find
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that the same pattern is that, you know, in the stricter schools, you know, kids
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are of course less likely to be on their phones. And here's one thing I want to
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emphasize. It's not just when kids are allowed to be on their phones, it's
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where schools let those students keep their phones. You can be a bell-to-bell school and say, "You know what? In our
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school you can't use your phone all day, but you can keep it anywhere you want."
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And we're finding that that matters. When kids have their phone in their hand
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or in their back pocket or even in their backpack, they're more tempted, it seems, to look at their phones than if
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it's in their hallway locker, it's in a, you know, centralized place, etc.
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Well, and one of the other things that you noted in the most recent tranche of research is that not only do
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you have to focus on the potential use of cell phones, but it's also the laptops as well because seemingly so
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many students are doing the majority of their work for school on their laptop. I
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know my kids are. Right. >> And who doesn't? Right, exactly. And obviously there has
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to be a temptation there while you're doing your work on the laptop like, well, I can slide my social media onto a
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different screen and have both at the same time. Right. One tab for, you know, doing my calculus and another tab for
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like looking up love story. And you know, you know, you know, it's it's um the
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co-location of academic work and temptation on the same exact device, you know, literally within pixels of each
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other, within a swipe of each other, within a click of each other. You know, the analogy I would give you is it's
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like asking kids salad in the middle of a bakery, right? You can do it. But you know, there are a lot of other things
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that you would prefer. And I feel the same way about myself. I mean, with no disrespect to my colleagues because as
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you know, I love this university with all my heart and soul. But I have to go to boring meetings, right? Who doesn't?
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And if I have my laptop, the temptation to stop taking notes on the meeting and to just go peek at my inbox, right?
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You know, look up that thing that I was looking up 5 minutes before the meeting.
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It is so strong. And therefore, we are finding in our data, you know, the same pattern with kids. I
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mean, I don't know if it's therefore, but I'll just say that we added a
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question this school year. I told you that the survey started last year. We're
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um extending it. We added a question, which is what percentage of students do you suspect are doing personal things
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like texting or social media from their laptop in class? And a striking one in three students, according to American
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school teachers, are currently using their laptops for non-academic purposes during the school day. And as a
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professor, again, I love my students. Literally love them. But if I [clears throat]
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their laptops in my class, I think the percentage would be similar, you know, if not higher. Yeah.
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Um you talked a moment ago about the component of mental health that seemingly becomes very important. And I
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think it's a discussion where a lot of people are having it, but maybe it hasn't been fully followed through as to
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just how these devices are impacting the mental health, especially of our children whose, in many cases, when
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you're in middle school or high school, your brain and your body are still developing at that point.
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You know, this generation, so, you know, we all went through childhood and adolescence. And you know, many of us
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will remember that that was not the easiest period of our lives. We were developing a sense of of self-concept,
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self-esteem, what's my niche, what's my role, what's my status, am I liked, do I
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belong here? friends. So we've all been through that period. And we might recall that it was
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a fraught period. I mean, it's not at all easy. And one of the things that really
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worries me as a psychologist who has worked with adolescents for her career is that now we have this
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device that enables you to not look at another person in the eye, to not have conversation, to not get to know
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someone. I mean, who enjoys those awkward first opening conversations with another human? Maybe complete
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extroverts. But for a lot of us, there is a little awkwardness. And what research is showing, you know, separate
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from the study that I just described, is that face-to-face in-person interaction,
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particularly among young people, is on a steep decline. I think that is very relevant
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to another worrisome trend, which is we are really seeing a crisis in mental health in young people. I'll speak about
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Gen Z adults because that's the most documented. As you know, are, you know, really in the same
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generation. I mean, this is in some ways the least happy generation that we have
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documented in human history. And if you ask the question, "Why?" Like what would
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There are, I'm sure, multiple reasons. Political polarization doesn't help.
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There's climate change and so forth. But I have to believe that the astronomic
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increase in the use of phones and social media have at least contributed to a crisis of well-being in our young
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people. How then does it also, and we're talking about this in the scope of the students
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and the teachers, but to a degree, and you kind of alluded to it that this is a much larger conversation outside of the
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schools, do the parents need to have and play an important role in this process as well?
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You know, there is hope. And I know, you know, painting this picture of technology and its, you know, inevitable
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march forward, right? The co-location of temptation and virtue in the same device. I mean, it does make you want to
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like throw up your hands and say like, well, I'm helpless to to change things.
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But I do think there's hope. And the reason why is that we are influenced by
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our surroundings. And we are most influenced by our immediate surroundings. So yes, there are macro
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cultural trends that you're not going to have a lot of control over. But you do
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have control over your local environment. So think locally. For example, if you are a parent, you can
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choose which school to send your child to because that school will have a culture. And that school's culture is
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going to influence your child's development much more than American culture at large. Same thing for the
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home. When we raised our two daughters, my husband Jason and I would often get, as so many parents do, "Well, my
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friend's family does it this way. They watch TV all day. Like, they have junk
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food. Like, why can't we have Oreos?" And we said to our daughters, "Because
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you're a Duckworth, and in the Duckworth family, we do things the Duckworth family way." So, I think every leader
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understands this. Every parent at some level has an intuition, but I just want to empower those of us who don't like
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the cultural trends and say, "You know what? I'm going to think locally, and
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I'm going to act locally." What's the next step then in the research that
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you're doing? Obviously, you said that the study is still up and running, and
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teachers can take part of it. phonesinfocus.org. What's next? So, we are collecting data through the
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end of this academic year. So, just for a couple more months, teachers have an opportunity to share their perspective.
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What we're going to do with all of that data is match it. And then, we're
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working actually with the National Governors Association, and the majority the vast majority of states are formal
00:11:02
partners in this. So, of the our 50 states um in the United States, and what we're going to do through these
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partnerships is match our survey data to records on attendance, to records on standardized achievement test scores. We
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also are going to actually look at survey measures of students' well-being and engagement in class. We're going to
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take all this data and ask the question, "Which policies in the United States for
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cell phones in schools are the best policies with the best uh long-term student outcomes?"
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Angela, always great to talk to you about this cuz it's so important. Appreciate it, and look forward to
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talking to you again down the road. Awesome, awesome. I love this place. Wharton really cares about impact, and
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I'm very, very um privileged, I should say, and grateful to be part of this great university and
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doing some of this important work. Angela Duckworth, Professor of Operations, Information, and Decisions
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here at the Wharton School.

Episode Highlights

  • Impact of Cell Phones on Students
    Angela Duckworth discusses the significant changes in school policies regarding cell phone use.
    “What does that mean for how the dynamics of the school day are going for students?”
    @ 00m 16s
    April 03, 2026
  • Teachers Prefer Stricter Policies
    Research shows that stricter cell phone policies lead to happier teachers.
    “The stricter the policy, the happier the teacher.”
    @ 03m 19s
    April 03, 2026
  • Crisis in Mental Health
    Angela highlights the alarming trends in mental health among Gen Z.
    “This is in some ways the least happy generation that we have documented in human history.”
    @ 08m 31s
    April 03, 2026

Episode Quotes

  • Mom, you know, this is what you trained for.
    How Phone Bans Are Changing Classrooms
  • We are really seeing a crisis in mental health in young people.
    How Phone Bans Are Changing Classrooms
  • You know what? I’m going to think locally, and I’m going to act locally.
    How Phone Bans Are Changing Classrooms

Key Moments

  • Phones in Focus Study00:23
  • Teacher Survey Insights02:14
  • Mental Health Crisis08:17
  • Local Influence10:33

Tension Over Time

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