Efficacy Trial of Healthy Together ("Juntos")

Inclusion Criteria:

Adolescent

1. Lives with participating biological parent or legal guardian;

2. Self-identifies as Hispanic;

3. Is between the ages of 12-15years old;

4. Has access to a smartphone;

5. Does not meet recommendations for physical activity as determined by a validated 2-item screener;

6. Does not meet recommendations for daily fruit and vegetable intake (proxy for dietquality) as determined by a validated 2-item screener;

7. Exceeds recommendations for screen time (proxy for sedentary behavior) as determinedby a validated 6-item screener

Parent

1. Is the biological parent or legal guardian of and lives with the adolescent;

2. Self-identifies as Hispanic;

3. Has access to a smartphone;

Exclusion Criteria:

Adolescent

1. Has BMI <5th (underweight) or ≥95th percentile (obesity);

2. Has a parent-reported chronic medical condition (e.g., type 2 diabetes) thatrequires more intensive intervention;

3. Has parent-reported responses on a physical activity readiness questionnaire (PAR-Q)that indicates a serious health issue, and a physician does not approveparticipation;

4. Has a parent-reported cognitive or developmental delay (e.g., Down Syndrome) thatmay interfere with understanding program materials.

Parent

1. Provides PAR-Q responses that indicate a serious health issue and a physician doesnot approve participation;

2. Reports family plans to move out of South Florida during the study follow-up period