title: Measuring social relational quality in colorectal cancer: the Social Relational Quality Scale (SRQS).
abstract: OBJECTIVE
  Social relationships are central in Asian communities. Despite colorectal cancer (CRC) incidence increasing in Asian populations the roles of social activity in facilitating adjustment and optimizing coping resources in Asian peoples remains largely unknown. We derived and validated among Chinese CRC patients, an instrument assessing social relational quality to enable study of these social processes.
  
  
  METHODS
  Qualitative interviews (n=16) generated 22-items subsequently administered to 166 Chinese CRC survivors. Principal components analyses identified underlying constructs. The draft instrument, plus measures of optimism, affect, physical symptoms, and perceived social support were administered to a second cohort of 234 newly diagnosed Chinese CRC patients.
  
  
  RESULTS
  Three factors were extracted (54.44% of the total variance): Family Intimacy(7 items, 33.08%), Family Commitment (5 items, 14.17%), and Friendships (5 items, 7.19%). All subscales were internally consistent (alpha=0.75-0.82), exhibiting concurrent validity in negative correlations with anxiety and depression and positive correlations with physical and psychological well-being. Convergent validity was indicated by significant positive correlations with optimism, and divergent validity by insignificant inverse correlations with physical symptoms and moderate correlations with perceived social support. Hierarchical regressions revealed positive correlations of the three subscales with psychological well-being, controlling for perceived social support (beta=0.13-0.28). Good criterion validity was indicated.
  
  
  CONCLUSIONS
  The Social Relational Quality Scale is a psychometrically sound self-report measure of social relational quality among Chinese CRC patients and needs further validation among other Asian groups.
authors.affiliation: Department of Psychology, The University of Hong Kong, Hong Kong, China.
authors.forename: Wai Kai
authors.initials: WK
authors.lastname: Hou
authors.forename: Wendy Wing Tak
authors.initials: WW
authors.lastname: Lam
authors.forename: Chi Ching
authors.initials: CC
authors.lastname: Law
authors.forename: Yiu Tung
authors.initials: YT
authors.lastname: Fu
authors.forename: Richard
authors.initials: R
authors.lastname: Fielding
mesh_terms: D002681:China; D015179:Colorectal Neoplasms / Q000523:psychology*; D005195:Family Relations; D005260:Female; D006801:Humans; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D011581:Psychological Tests / Q000592:standards; D015203:Reproducibility of Results; D012917:Social Adjustment; D012944:Social Support