Users' Intrinsic Goals Linked to Alcohol Dependence Risk Level and Engagement With a Health Promotion Website (Hello Sunday Morning): Observational Study.

HSM users with higher alcohol dependence risk tended to engage with the website less, but to the extent that they did, they tended to subscribe to goals related to alcohol use and improving their personal growth, relationships, and finances. In line with SDT, engagement with goals-particularly the intrinsic goals of connecting with close-others and the broader community-related to increased website engagement. Web-based tools intended to promote healthy behaviors in users may be effective in engaging their users if the users' experience on the website supports the pursuit of intrinsic goals.