An Automated Conversational Agent Self-Help Program: Randomized Controlled Trial.

Background: Health promotion and growth-based interventions can effectively improve individual well-being; however, significant gaps in access and utilization still exist.

Objective: This study aims to develop and test the effectiveness and implementation of a new, widely targeted conversational agent prevention program (Zenny) designed to enhance well-being.

Methods: A total of 1345 individuals in the United States were recruited online and randomly assigned to either (1) a self-help program intervention delivered via an automated conversational agent on WhatsApp or (2) an active control group that had access to evidence-based wellness resources available online.