Social functioning as an outcome variable in family interventions with schizophrenic patients has been a relatively neglected area. The requirements of a scale of social functioning to measure the efficacy of family interventions include: the measurement of skill/behaviour relevant to the impairments and the demography of this group; the ability to yield considerable information with an economy of clinical time; and the establishment of ‘comparative’ need through comparison between subscales and with appropriate reference groups. Results from three samples show that the Social Functioning Scale is reliable, valid, sensitive and responsive to change.
As per a request here is an article related to the SFS.
M Birchwood, J Smith, R Cochrane, S Wetton and S Copestake. The Social Functioning Scale: The Development and Validation of a New Scale of Social Adjustment for use in Family Intervention Programmes with Schizophrenic Patients. (1990) British Journal of Psychiatry, 157, p853-859
and a study that used the SFS:
J, Addington. D, Addington. Neurocognitive and Social Functioning in Schizophrenia. (1999) Schizophrenia Bulletin, 25,vol 1, p173-182