Seven families of children exhibiting behavior management problems were trained in behavior modification techniques, using procedures modeled after the work of Patterson and his associates. Outcome was evaluated by coded home observations, by parental reports, and by consultant and home observer reports. Three of these families showed positive short-term changes in the multiple measures; only one family showed substantial long-term changes. Data collection and interpretation problems are discussed, as are possible reasons for the failure to obtain long-term changes for more families.