The Impact of a Web-based Psychoeducation Programme with a Motivational AI Chatbot on Covid-19 Vaccine Hesitancy

This study is a two-arm, single-blind pilot randomized controlled trial, and it will be adopted to evaluate the efficacy of the 'AI-driven Vaccine Communicator' relative to being self-informed about Covid-19 vaccines. Also, to address the widespread hesitancy among Hong Kong residents toward Covid-19 vaccines, we will develop a Web-based psychoeducation programme, 'AI-driven Vaccine Communicator,' driven by artificial intelligence (AI) techniques based on the Vaccine Hesitancy Determinants Matrix Model and MI communication skills and concepts (theoretical underpinnings). After developing and piloting this programme, we will test its effectiveness among members of the population who are hesitant about Covid-19 vaccines. The programme will then be refined further and standardised to use the most relevant information and effective communication skills to promote acceptance of Covid-19 vaccines among a wider Hong Kong population. Clinicians and healthcare providers will be able to utilise our programme as a toolkit in their usual practice when working with clients who are hesitant about Covid-19 vaccines.