A procedure is described for recording dyadic social interactions between family members. The procedure is presented within the context of general considerations for recording behavior, and the specific rationale underlying the present technique is given. Functional definitions for several behavior categories are included and an example of how the technique might be applied to an individual treatment case is presented. The recording procedure should provide family workers in both research and applied settings with a functional tool for identifying problem behaviors, as well as describing some of the antecedent and consequent stimulus events which might be contributing to their maintenance within a family. (Author)