title: A cross-cultural validation of patient-reported outcomes measures: a study of breast cancers survivors.
abstract: OBJECTIVE
  Psychometric inadequacy interferes with the assessment of patient-reported health outcomes. This study examined the psychometric properties of several standardized measures in health research.
  
  
  METHODS
  Participants completed health outcomes measures including the FACT-G, SF-36, MOS Social Support Survey, and CES-D. Psychometric properties examined include reliability, and construct and concurrent validity.
  
  
  RESULTS
  320 BCS including 88 African-, 95 English-proficient Latina-, and 137 Limited English-proficient Latina-Americans participated. The findings demonstrate acceptable reliability (α > 0.70) and consistent factor structures for most measures with the variance ranging from 56 to 84%. The FACT-G physical well-being and SF-36 role limitations subscales had the best fitting structures. Concurrent validity showed the FACT-G subscales correlated with their appropriate counterparts.
  
  
  CONCLUSIONS
  Despite being commonly used instruments in HRQOL (e.g., FACT-G, SF-36) and QOL (e.g., CES-D, MOS) research, few studies reported the psychometric properties of these and when applied cross-culturally. However, evaluating the psychometric properties of measures in health outcomes research should be done routinely.
authors.affiliation: Center of Community Alliance for Research and Education (CCARE), Department of Population Sciences, City of Hope National Medical Center, 1500 E Duarte Road, Duarte, CA 91010-3000, USA. kashing@coh.org
authors.forename: K
authors.initials: K
authors.lastname: Ashing-Giwa
authors.forename: M
authors.initials: M
authors.lastname: Rosales
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000523:psychology*; D002140:California; D003431:Cross-Cultural Comparison; D003469:Culture; D005006:Ethnicity / Q000523:psychology / Q000706:statistics & numerical data; D005260:Female; D006304:Health Status; D006306:Health Surveys; D006801:Humans; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D011569:Psychiatric Status Rating Scales; D011594:Psychometrics / Q000295:instrumentation*; D011788:Quality of Life; D015203:Reproducibility of Results; D012944:Social Support; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D017741:Survivors / Q000523:psychology*