Expanding integrated protection motivation theory and theory of planned behavior: The role of source of influence in flood and typhoon risk preparedness intentions in Quezon Province, Philippines

The Philippines is a country that has a high risk of climate-related calamities. The most frequent natural hazard in the nation is believed to be typhoons, and countries that experience numerous typhoons are vulnerable to floods. Quezon, one of the country’s provinces located in the eastern part of the Philippines, has had this critical problem. To comprehend how the source of influence affects disaster preparedness behavior, this study incorporated and extended the integrated theories of protection motivation and planned behavior. A total of 525 people responded to an online survey with 45 modified adapted questions that was carried out in the municipalities of Quezon. According to the structural equation modeling, the latent variables, including family and community, media information, and prior experiences, are all reflective of the source of influence. Additionally, the source of influence has a significant and direct impact on perceived vulnerability, perceived severity, attitude toward behavior, perceived behavioral control, and subjective norms. It also indirectly affects the intention to evacuate. This study could not only broaden our understanding of how to prepare for typhoons and floods, but it also offers guidance for planning and managing natural hazard mitigation and disaster risk preparedness in Quezon, Philippines.