Validation of scales to measure benefits of and barriers to colorectal cancer screening

Susan Rawl, Victoria Champion, Usha Menon, Patrick J. Loehrer, Gail H. Vance, Celette Sugg Skinner

Research output: Contribution to journalReview article

78 Scopus citations

Abstract

Participating in screening for colorectal cancer can significantly decrease mortality from this disease. Although the health belief model constructs of perceived benefits and barriers have been related to other cancer screening behaviors, benefits and barriers to fecal occult blood testing (FOBT) have not been measured consistently, and little is known about these variables in relation to flexible sigmoidoscopy and colonoscopy. The purpose of this study was to establish the psychometric properties of six scales measuring benefits and barriers related to screening for colorectal cancer, including FOBT, flexible sigmoidoscopy, and colonoscopy. Reliability coefficients for the scales ranged from .65 to .77. Construct validity was established using exploratory factor analyses with results confirming unidimensionality of structs. Construct validity was further assessed by testing theoretical relationships among benefits, barriers, and screening behaviors. Results of analyses of variance were consistent with theoretical predictions: Perceived benefits were higher and perceived barriers were lower for people who had undergone sigmoidoscopy or colonoscopy compared with people who had not had these tests.

Original languageEnglish (US)
Pages (from-to)47-63
Number of pages17
JournalJournal of Psychosocial Oncology
Volume19
Issue number3-4
DOIs
StatePublished - Jan 1 2001

Keywords

  • Barriers
  • Benefits
  • Colorectal cancer
  • Health beliefs
  • Psychometrics
  • Screening

ASJC Scopus subject areas

  • Oncology
  • Public Health, Environmental and Occupational Health
  • Psychology(all)
  • Social Psychology

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