Study 1: Incentive RCT on Willingness to Participate in a Future EMA Study

This component contains materials, analysis documents, and outputs for Study 1, a randomised controlled trial examining whether incentive condition affects willingness to participate in a future smartphone-based EMA/ESM study. The trial compares three conditions: financial incentive, social incentive, and no incentive. It also includes analyses of reasons for non-participation and preferences for alternative incentives among those unwilling to participate.