Adolescence is a time of significant developmental transformation duri
ng which the teenager may be susceptible to experimental behaviors suc
h as illicit drug use. This risk-taking proclivity may arise because t
he adolescent is just beginning to consolidate the skills of formal op
erations thought, including abilities to predict behavioral outcomes,
weigh options, select alternatives, and adopt the perspective of other
s. Lacking these skills, teenagers may have difficulty adjusting to pu
bertal status and family conflict One technique for overcoming this co
gnitive deficit is previewing, which focuses the teenager on imminent
outcomes. A case history concerning a teenager abusing marijuana illus
trates how previewing may help overcome maladaptive patterns.