Advancing Family Wellbeing Through a Massive Open Online Intervention: The LightBEAM Program

Early childhood is a critical period for developmental outcomes, and the parent-child relationship plays a vital role in shaping cognitive and social development. However, elevated parental distress (e.g., depression, anxiety, anger) can disrupt healthy relationships, increasing the risk of negative child outcomes such as difficult temperaments, altered cognitive development, and socio-emotional challenges. Despite the well-documented effects of untreated parental distress, Canadian families face significant barriers to accessing timely and effective mental health support. To address this gap, our team developed BEAM, an app-based program that provides parenting and mental health resources. BEAM includes expert-led videos, online forums, progress monitoring, and peer-coaching sessions. Clinical trials to date evaluating BEAM have shown promising results, demonstrating reductions in parent depression, anxiety, and harsh parenting practices. Building on BEAM's success, we have developed the LightBEAM program, which aims to expand these supports into a scalable, accessible, massive online open intervention (MOOI) to reach a larger number of families across Canada, particularly in underserved areas or those on waitlists for individualized services. LightBEAM has the potential to support parental mental health, fostering healthier child and family development while addressing barriers to traditional mental health care. This trial involves a pre-post randomized trial design with primary aims of (1) assessing feasibility and acceptability metrics of LightBEAM including recruitment/retention, sustainability, satisfaction, and unmet needs, (2) examining the efficacy of LightBEAM versus waitlist control at improving family and mental health outcomes, and (3) determine for whom LightBEAM is more or less effective at engaging with and addressing mental health needs. This trial will evaluate the feasibility and effectiveness of LightBEAM with a sample of up to 300 parent partic