Rules: the invisible family.

Family rules occur in groups of five and more. Because they are implicit and multi-dimensional, family rules are beyond visualization. These characteristics have unsettling effects on clinicians and researchers. Knowing the rules of a family, however, allows precise intervention, and using rules concepts makes learning family therapy techniques less threatening to students. The concept of homeostasis in the context of rules has been examined and placed in an understandable perspective. Rules provide the connection between family process and individual behavior. They also constitute an integrated theory of families and individual personality development.