and perceptions of the environment) that promote or discourage a constellation of deviant behaviors (e.g., conduct problems, underage or risky drinking, unprotected intercourse, etc.) that can undermine individuals' health and safety. Previous research informed by PBT found that psychosocial factors in adolescence accounted for a substantial proportion of the variance (> 50%) in problem drinking in emerging adulthood (ages 23-27) (Jessor, 1987)
