text: Family interaction patterns among families with normal, disturbed, and drug-abusing adolescents.
  The relationships between family interaction patterns and the symptomatology of the individual family member are central to many therapeutic approaches. This study was designed to determine whether family interaction patterns differ significantly among three groups of families defined according to the adolescent offspring's symptoms. Thirty families were evaluated in a one-hour interview while three observers behind a one-way mirror rated verbal behavior and the quality of interaction between father, mother, and adolescent. Assessed behaviors included the ability to reach a decision, decision time, scapegoating, and double-bind messages. In addition, the quality of the family's interaction was assessed at four different times during the interview. The results established that the three family groups did not differ demographically. A comparison of the two disturbed family groups yielded no significant differences, with the exception of the adolescent's presenting problem and behaviors. The normal group was significantly different from the other two groups in frequency of scapegoating of the adolescent and the ability to reach a decision. Additionally, the normal families displayed clearer communication, more freedom of expression, more cooperation, and greater sensitivity among members. Several variables did not discriminate the normal group from the disturbed family groups.