Fig1.

Study Timeline

Notes. At the first in-person visit (T1), participants completed measures for risky sex, illicit drug use in their lifetime. They also assessed their delinquent behavior and stressful life events in the past 12 months along with their perceived stress and coping in the previous one month. Various covariates are included that were assessed at T1 in-person visit, including free/reduced lunch eligibility, age, sex, race and sensation seeking. Delinquency was measured one year later at the second in person visit (T2), yet it was not related to the stressful life events measured at T1. We examined delinquency and substance use collected via weekly texting data for three months post the first in-person visit to establish the temporal order for stressful life events, coping strategies and risk-taking behavior outcomes.