Comprehensive Testing of Imminent Threat of Public Messages for Mobile Devices
Department of Homeland Security (DHS), 2014
This project sought to determine the optimized message contents of imminent threat wireless emergency alert (WEA) messages delivered over mobile communication devices. This report presents findings for the first WEA messages disseminated about imminent threats (i.e., first alert messages) from two research phases with U.S. adults: (1) eight experiments, seven focus groups and 50 think-out-loud interviews; and (2) a survey of an actual “real world” severe flood in Boulder, Colorado. It also integrates findings from across study methods and provides actionable guidance and considerations for optimized message contents of imminent one-hour-to-impact threat alerts delivered over mobile communication devices. The project’s findings provide concrete insights to help imagine optimized WEA and warning messages that could exist in the future.