The characteristics of the current population of group care institutions, residential treatment centers, and group homes and the impact of these characteristics on the nature and degree of problematic behavior were the focus of this survey. In May 1978, an extensive questionnaire was sent to 168 agencies. The questionnaire sought information concerning the characteristics of the facilities, including number of residents, length of stay, resident/child care worker ratio, educational attainment level of workers, worker turnover, services available, and referral services; and the characteristics of the population served, including sex, age, race, income level, intellectual and physical functioning, emotional/behavioral classification, and changes in admission criteria. The survey also considered the type, frequency, and rate of increase of common disruptive behavior. This was followed by an inquiry into methods of coping with disruptive behavior. The methods respondents found to be successful were (in order) restricting privileges, developing consistent relationships, counseling, separating offenders from the group, employing behavior modification techniques, and encouraging peer pressure. Also considered were the use of medication and secure confinement. An important factor was the impact of peer and staff relationships. Successful management is dependent not only on the methods used, but also on the attitudes and skills of the individuals implementing them. (JK)