In 1977, the current editors contributed a review article on behavioral group therapy to a volume of Hersen, Miller, and Eisler's Progress in Behavior Modi fication series (1977). At that time we noted that, despite the advantages to both clinicians and clients of conducting behavioral treatments in groups, clinical developments and research in this area were still at a relatively rudimen tary level. The majority of studies in the behavioral group therapy literature we reviewed reported the direct transfer of an individual behavior therapy pro cedure, such as systematic desensitization, to a group of clients with homoge neous problems, such as snake phobia or test anxiety. Groups were used in many studies merely to generate sufficient numbers of subjects to allow various types of interventions to be compared, rather than to examine group process variables per se. Only a limited amount of attention had been given to whether these group interaction variables (such as group discussion, sharing ideas and feelings, and mutual feedback and reinforcement) might enhance individually oriented procedures applied in a group. The 8 years since this original chapter was written have seen a significant growth in both the breadth and depth of clinical research and work in the behavioral group therapy field. This growth was documented in part in a three volume series on behavioral group therapy by the current editors (Upper & Ross, 1979, 1980, 1981).

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I: Procedural and Process Issues.- 1. Behavior Modification in Groups: A Time-Limited Model for Assessment, Planning, Intervention, and Evaluation.- 2. A Review and Programmatic Model of Group Social Skills Training for Psychiatric Patients.- 3. Preparing Clients for Behavioral Group Therapy.- 4. Teaching Problem-Solving Skills to Chronic Psychiatric Patients.- 5. Long-Term Behavioral Group Psychotherapy: An Integrative Model.- 6. Behavioral Group Therapy with Heterogeneous Clients.- II: Clinical Applications with Specific Populations.- 7. Improving Children's Social Competence: A Multimodal Behavioral Group Approach.- 8. Group Social Skills Training with Adolescents: A Critical Review.- 9. Modifying the Type A Behavior Pattern: A Behavioral Group Approach in Behavioral Medicine.- 10. Behavioral Group Therapy with the Elderly: A Psychoeducational Approach.- III: Clinical Applications for Specific Problems.- 11. A Behavioral Group Therapy Approach to the Treatment of Depression.- 12. Behavioral Group Treatment for Addictive-Appetitive Disorders: Alcoholism, Smoking, Obesity, and Drug Abuse.- 13. Behavioral Group Treatment Methods for Sexual Disorders and Dysfunctions.- 14. Behavioral Group Therapy for Anxiety Disorders.- 15. Behavioral Group Therapy with Drunk-Driving Offenders.- 16. The Management of Chronic Pain: A Cognitive-Functioning Approach.