Psychometric properties of the MSPSS and NOS in psychiatric outpatients.

Prior research has demonstrated the utility of the Multidimensional Scale of Perceived Social Support (MSPSS) and the Network Orientation Scale (NOS) as measures of perceived social support among nonpsychiatric samples. The primary objective of this study was to determine whether these two scales can be used reliably among psychiatric outpatients, in particular those with schizophrenia or a major affective disorder. Subjects were 144 outpatients, aged 21 to 67 years, who completed the MSPSS and NOS. Results demonstrated high internal consistency for the MSPSS and adequate internal consistency for the NOS. In addition, convergent validity was demonstrated. Scores on both scales for these psychiatric outpatients were found to be lower as compared to "normals."