1. RAND Corporation, Santa Monica, California;
2. Department of Pediatrics, School of Medicine, University of New Mexico, Albuquerque, New Mexico;
3. School of Media and Journalism, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina;
4. Department of Communication, University of Arizona, Tucson, Arizona;
5. Data & Society Research Institute, New York, New York; and
6. Department of Psychology, University of Michigan, Ann Arbor, Michigan