Healthy volunteers
Accepted
Participants will: be enrolled in one of our partner schools, be in middle school (i.e., 7th or 8th grade) or between the ages of 12-14 years of age, be English-speaking, own their own cell phone, intend to have the same cell phone number for at least 3 months (this may or may not apply, depending on the number of youth who meet this criterion), and provide informed written assent. Non-English speakers and youth who do not have the reading ability to complete the screener are not eligible. Youth recruited from schools will also be required to have parental permission.
