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This study examined the psychometric properties of the Multidimensional Scale of Perceived Social Support (MSPSS; Zimet, Dahlem, Zimet, & Farley, 1988) with a diverse group of 154 students at an urban college. The following areas were investigated: internal reliability, factorial validity, social desirability bias, and the moderating effect of social support between stressful life events and depression (i.e., the buffering hypothesis). The MSPSS had good internal reliability, and the factor analysis confirmed the subscale structure of the measure: family, friends, and significant other. There was no indication that social desirability bias influenced subjects' responses. Finally, social support was related to depression only for those subjects who were experiencing high levels of life stress, which lends support for the buffering hypothesis.
Dahlem et al. (Fri,) studied this question.