title: Psychometric testing of the social support survey on a Taiwanese sample.
abstract: BACKGROUND
  The Medical Outcomes Study Social Support Survey (MOS-SS) is a multidimensional, self-administered instrument used to assess various functional dimensions of social support. Less is known regarding its value for a Chinese population.
  
  
  OBJECTIVE
  The aim of this study was to assess the psychometric properties of the MOS-SS on an adult sample in Taiwan.
  
  
  METHODS
  A total of 265 adult family caregivers of patients with cancer from four different hospitals in the north, middle, and south regions of Taiwan completed the MOS-SS.
  
  
  RESULTS
  In the original five-factor model, unsatisfactory item discriminant validity was found in almost half of the items; the item-own subscale correlation was lower than the item-other subscale correlation. A two-factor model accounting for 68.98% of the variance was found using exploratory factor analysis. The first factor (emotional support) accounted for 62.28% of the total variance, whereas the second factor (tangible support) accounted for 6.7%; the interfactor correlation was .71. The two-factor model seemed to have satisfactory reliability and validity and better discrimination between different subscales than did the original five-factor model.
  
  
  CONCLUSIONS
  Good reliability and validity were demonstrated in the MOS-SS when applied to an adult sample in Taiwan. A two-factor model, instead of a five-factor model as found in the Western countries, was found for this sample. Confirmation of the two-factor model and exploration of the two-factor model in related concepts are suggested for future studies.
authors.affiliation: School of Nursing, Center for Gerontological Research, Chang Gung University, Taoyuan, Taiwan.
authors.forename: Yea-Ing Lotus
authors.initials: YI
authors.lastname: Shyu
authors.forename: Woung-Ru
authors.initials: WR
authors.lastname: Tang
authors.forename: Jersey
authors.initials: J
authors.lastname: Liang
authors.forename: Li-Jen
authors.initials: LJ
authors.lastname: Weng
mesh_terms: D000328:Adult; D017028:Caregivers / Q000523:psychology; D002681:China / Q000208:ethnology; D005163:Factor Analysis, Statistical; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D009369:Neoplasms; D011594:Psychometrics; D015203:Reproducibility of Results; D012944:Social Support; D011795:Surveys and Questionnaires; D013624:Taiwan