Reducing Smartphone Overuse for Adolescents With Attention-Deficit Hyperactive Disorder

The proposed study will use a behavioral smartphone-based intervention in a 12-week RCT among clinically diagnosed ADHD adolescents in Hong Kong. Guided by a conceptual framework on SO in ADHD, we will implement specific strategies that counter the potentially addictive qualities of smartphones using built-in smartphone functions that have been previously shown to be effective.

Participants will receive information about the known benefits and risks of SO and activate their smartphones' screentime monitoring setting. They will receive weekly reminders to submit their smartphone usage data.