title: Effects of news media messages about mass shootings on attitudes toward persons with serious mental illness and public support for gun control policies.
abstract: OBJECTIVE
  In recent years, mass shootings by persons with serious mental illness have received extensive news media coverage. The authors test the effects of news stories about mass shootings on public attitudes toward persons with serious mental illness and support for gun control policies. They also examine whether news coverage of proposals to prevent persons with serious mental illness from having guns exacerbates the public's negative attitudes toward this group.
  
  
  METHODS
  The authors conducted a survey-embedded randomized experiment using a national sample (N=1,797) from an online panel. Respondents were randomly assigned to groups instructed to read one of three news stories or to a no-exposure control group. The news stories described, respectively, a mass shooting by a person with serious mental illness, the same mass shooting and a proposal for gun restrictions for persons with serious mental illness, and the same mass shooting and a proposal to ban large-capacity magazines. Outcome measures included attitudes toward working with or living near a person with serious mental illness, perceived dangerousness of persons with serious mental illness, and support for gun restrictions for persons with serious mental illness and for a ban on large-capacity magazines.
  
  
  RESULTS
  Compared with the control group, the story about a mass shooting heightened respondents' negative attitudes toward persons with serious mental illness and raised support for gun restrictions for this group and for a ban on large-capacity magazines. Including information about the gun restriction policy in a story about a mass shooting did not heighten negative attitudes toward persons with serious mental illness or raise support for the restrictions.
  
  
  CONCLUSIONS
  The aftermath of mass shootings is often viewed as a window of opportunity to garner support for gun control policies, but it also exacerbates negative attitudes toward persons with serious mental illness.
authors.affiliation: Johns Hopkins Center for Gun Policy and Research, Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA. emcginty@jhsph.edu
authors.forename: Emma E
authors.initials: EE
authors.lastname: McGinty
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Webster
authors.forename: Colleen L
authors.initials: CL
authors.lastname: Barry
mesh_terms: D000293:Adolescent; D000328:Adult; D001290:Attitude; D002648:Child; D003625:Data Collection; D005260:Female; D005389:Firearms / Q000331:legislation & jurisprudence*; D006801:Humans; D008297:Male; D008402:Mass Media; D001523:Mental Disorders / Q000523:psychology; D028642:Persons with Psychiatric Disorders / Q000331:legislation & jurisprudence*; D008875:Middle Aged; D011639:Public Opinion; D011640:Public Policy / Q000331:legislation & jurisprudence*; D011897:Random Allocation; D014481:United States