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Justine Heinze

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Justin Heinze

Associate Professor, Health Behavior and Health Equity
Associate Professor, Combined Program in Education and Psychology
Dr. Heinze's research investigates how schools influence disparities in violence and other risk outcomes from an ecological perspective that includes individual, interpersonal, and contextual influences on development. He is particularly interested i...
Justine Heinze

Michigan School Cellphone Policy Study

September 2025 - September 2028
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Brian Jacob, Justin Heinze, Elyse Thulin, Triana Kazaleh Sirdenis, Megan Jagolinzer, Chihiro Tanigawa, Rukmini Nallamothu, Giuliana Cusumano, Hien Le, Dave Kobel, Emma Ehrenzeller, Briana Scott
Youth Policy Lab has partnered with colleagues at the University of Michigan School of Public Health and the Institute for Firearm Injury Prevention to examine the impact of school cellphone policies in Michigan. This study aims to identify variability in district cellphone policies; understand the barriers to and facilitators of implementation; and estimate their impact on indicators of community violence, including fights in school, school discipline, and police incidents; as well as a range of mental health, wellbeing, and academic outcomes. While school cellphone restrictions may improve y...
Student looking at a cell phone while sitting at a desk surrounded by other students in a classroom