Thus there is an urgent need for mobile technologies—that is, programs using mobile phone or tablet, including apps and text messaging, or portable devices to deliver an intervention—to reduce barriers by helping parents identify injury hazards in their homes, consolidate credible injury prevention recommendations, organize information by room or feature, tailor by child age, facilitate the acquisition and installation of safety products, encourage and track progress, thereby increasing the likelihood that parents accomplish these important and life-saving safety tasks. Our long-term goal is to prevent or reduce the consequences of home-related child injuries. The overall objective of this proposed research, which is the next step toward attainment of our long-term goal, is to preliminarily evaluate a mobile technology-based health behavior change intervention, the Make Safe Happen® app, for improving knowledge and behavior for the prevention of unintentional child injuries. Our central hypothesis is that parents will have increased safety knowledge and more safety behaviors (self-reported and observed), and higher behavioral intention to make their homes safer after utilizing the Make Safe Happen® app compared to a control group. The rationale that underlies the proposed research is derived from the Health Belief Model (HBM) which explains that an individual's perceptions of a threat posed by a health problem (susceptibility, severity), the benefits of avoiding the threat (perceived benefits), and factors influencing the decision to act (barriers, cues to action, and self-efficacy) effect their decision about whether to take action to avoid injury or illness (National Cancer Institute 2005). The investigators plan to objectively test our central hypothesis and, thereby, attain the objective of this application by pursuing the following specific aims: