The goal of risk communication is to inform people about the risks they face and to encourage them to take appropriate action in response to that threat. To achieve this goal, risk communication scholars continuously examine the messages surrounding crises and disasters, and engage in message-testing to evaluate theory-driven message designs. Recent communication scholarship recommends that messages should including instructing information (Coombs, 2012), and should take into consideration established pedagogy based on instructional communication research (Sellnow & Sellnow, 2010). This dissertation continues to build on research which applies instructional communication scholarship to risk communication messaging. Using message-testing, this dissertation examined the utility of the IDEA model a message design for earthquake early warnings
