Intervention components include the following: (1) monitoring by the app prompting parents to record observed strength behaviors (eg, asking an adult for help with insulin calculation, managing a difficult diabetes-related problem) their adolescents engage in each day; (2) feedback to parents by providing personalized weekly summaries of the adolescents’ most frequent strengths; and (3) feedback to adolescents by teaching and encouraging parents to reinforce their teens’ diabetes strengths. The gene discussed is INS; the disease is diabetes mellitus.