or used other hard drugs, with ratings ranging from 1 (never) to 8 (2–3 times a day or more) (α = 0.64, mean inter-item correlation = 0.37) The friend who participated in the videotaped Peer Interaction Task also filled out the Problem Inventory (Oregon Social Learning Center 1990) by using yes or no responses to identify potential areas of concern that had been an issue (i.e., problematic) for him or her in the past 4 weeks. Answers regarding three topics—use of drugs, consumption of beer or other liquor, and use of tobacco—were summed to yield a score ranging from 0 to 3.
