The McMaster Model of Family Functioning: observer and parental ratings in a nonclinical sample.

The McMaster Model of Family Functioning defines seven dimensions, which may be assessed either by an observer applying a Clinical Rating Scale (CRS) to a semi-structured interview of the family and/or by family members completing a questionnaire, the Family Assessment Device (FAD). The present article applied both methods of assessment, as well as the Dyadic Adjustment Scale (DAS), to a nonclinical sample (N = 105). Interobserver reliability on the CRS was highly significant. Parent (FAD) vs. observer (CRS) agreement was also highly significant, except for Affective Responsiveness and Behavior Control, for which agreement was barely significant. When families were labeled as "healthy" or "unhealthy" according to cut-offs, agreement between observers and parents was high (87%), and disagreements illuminated dynamics of individual families. Finally, the DAS (completed by mothers) was significantly correlated with both the CRS and the FAD, particularly for General Functioning.