A Mental Health Storytelling Intervention Using Transmedia to Engage Latinas: Grounded Theory Analysis of Participants' Perceptions of the Story's Main Character.

When creating a story-based mental health intervention to be delivered through an app, regardless of type, careful development of the main character is valuable. Theoretical guidance, previous deidentified data from the target group, critique from key stakeholders and members of the target group, and preliminary testing are likely to enhance the main character's relatability and appropriateness, which can increase sustained engagement.