Tech Policy Evaluation
How Effective Are Policies That Regulate Adolescent Digital Technology Usage?
Assessing Online Experiences and Evaluating Policy
Around the world, governments and schools are beginning to change the rules governing adolescents’ access to smartphones and social media. Two of the most prominent reforms are phone-free schools and minimum age restrictions for social media. UNESCO reported that 114 education systems have adopted national policies restricting phones in schools. In 2025, Australia became the first country to establish a national minimum age of 16 for social media accounts, and other countries are considering similar measures.
These policies create an important opportunity for research. Are they effectively changing company behavior? Do they actually change how young people use technology? Do they improve learning, mental health, social interaction, or family life? Which approaches work best, and what unintended consequences emerge? What evidence do policymakers need to design more effective interventions, and continue to measure the efficacy of these regulations over time? And what can these early efforts teach us about regulating emerging technologies such as AI and EdTech?
At the Tech & Society Lab, we study these policies as they are implemented in the real world. We work with researchers, schools, and other partners to measure their effects, identify why some approaches succeed while others fall short, and help policymakers learn from early adopters.
Relevant current projects, academic publications, public press articles, resources and collaborative review documents
- Evaluation of Phone Free School Policies
- Evaluation of Social Media Minimum Age Policies
- Efficacy of Age-Based Restriction Policies
- Evaluation of Parent-Led Collective Action
- Comparative Harms Project
- Lee, A. Y., Lim, C. H. J., Liu, X., Jin, K., Buffone, A., Iyer, R., Rausch, Z. M., Haidt, J., Fast, N. J., Hancock, J. T., & Linos, E. (2026). Measurement of American adolescents’ experiences of online harms: A nationally representative survey. JAMA Pediatrics. (In press).
- Park, E., Lim, C. H. J., Rausch, Z., & Haidt, J. (2026). Are school phone restriction policies working? [pre-print]
- Iyer, R., Haidt, J., & Rausch, Z. (2026, July 18). What the world should learn from Australia’s social media law. TIME.
- Australia’s Social Media Policy Is Succeeding