Psychologists in the public schools traditionally have spent a small portion of their time working with parents. There is, however, a need for the psychologist to act aa a family/school liaison agent whose function is to promote collaborative problem-solving efforts regerdin problematic child behavior. Four different approaches to working with scaool personnel and/or family representatives are presented, including information imparter-gatherer, facilitator, consultant/educator or consultant, and counselor/educator. Advantages and disadvantages of each approach as well a s tarends in the research relevant to these approaches are discussed.It is a commonly accepted fact that the home and school constitute the two most important behavioral settings in which a child is active. Within these settings, the child's psychosocial development is facilitated or hindered by the quality, and in some instances the quantity, of interactions he/she has with significant others such as parents, siblings, teachers, and peers. Unfortunately, representatives of these two vital systems rarely communicate with one another except when the child is designated as deviant or problematic in one way or another. In such cases, the child's learning or behavioral characteristics necessitate the sharing of information between the systems' representatives, usually a parent and a teacher. When a problematic situation does indeed demand contact between the two systems, the parents or teacher may attribute the cause of the problem to the other party. Consequently, from their beginning, mutual problem-solving efforts may be handicapped by defensive or angry feelings.The purpose of this paper is to describe several roles the psychologist can play in order actively to involve representatives of the family and/or school in solving problematic child behavior. Two broad assumptions are made: First, the psychologist in the schools is well suited to fill the role of a family/school liaison agent. The practicing psychologist usually is trained to facilitate^ communication between other persons as well as problem-solving eff orts. Furthermore, the psychologist often is aware that problematic child behavior is seldom a phenomenon unique to the school setting or to any other single setting (Gilmore, 1974). A second assumption is that family/school contact ideally should result in a collaborative problem-solving effort on the part of both family members and school personnel whenever possible. The common goal is resolution of the child's inappropriate behavior. Ideally, there should be acknowledgement by both parties that the problem is located, to some degree, in the child's interaction with members of each setting, Hence, the problem is "owned" by the child as well as by members of both settings. Frequently, the identified child is viewed as the sole "owner" of a problem. Family members as well as school personnel often see the problem residing within the child and assume no direct responsibility for the child's behavior. In such Requests for reprink should be s...