This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Tiro, J. A. Articles by Myers, R. E. Search for Related Content PubMed PubMed Citation Articles by Tiro, J. A. Articles by Myers, R. E.

Factorial Validity and Invariance of a Survey Measuring Psychosocial Correlates of Colorectal Cancer Screening among African Americans and Caucasians

¹ Cancer Prevention Fellowship Program, National Cancer Institute, Bethesda, Maryland; ² Center for Health Promotion and Prevention Research, The University of Texas-Houston School of Public Health, Houston, Texas; Divisions of ³ Clinical Pharmacology and ⁴ Genetic and Preventive Medicine, Department of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania

Requests for reprints: Jasmin A. Tiro, Division of Cancer Control and Population Sciences, National Cancer Institute, 6130 Executive Boulevard, Room 4103A, Bethesda, MD 20892-7331. Phone: 301-451-5040; Fax: 301-480-6637. E-mail: tiroj{at}mail.nih.gov

Background: Psychosocial constructs are widely used to predict colorectal cancer screening and are targeted as intermediate outcomes in behavioral intervention studies. Reliable and valid instruments for measuring general colorectal cancer screening psychosocial constructs are needed; yet, few studies have conducted psychometric analyses. This study replicated a five-factor structure for 16 theory-based, general colorectal cancer screening items measuring salience and coherence, cancer worries, perceived susceptibility, response efficacy, and social influence. In addition, we examined factorial invariance across race and sex.

Methods: African American and Caucasian patients (n = 1,413) attending an urban, primary care clinic were included in this study. These individuals completed a baseline survey as part of a colorectal cancer screening intervention trial. Single and multigroup confirmatory factor analyses using maximum-likelihood estimation were done.

Results: The five-factor general colorectal cancer screening model provided excellent fit and was invariant across race-sex subgroups.

Conclusions: The findings of invariance across sex and race subgroups support the use of these scales to measure group differences. (Cancer Epidemiol Biomarkers Prev 2005;14(12):2855-61)

This article has been cited by other articles:

				A. McQueen, J. A. Tiro, and S. W. Vernon Construct Validity and Invariance of Four Factors Associated with Colorectal Cancer Screening across Gender, Race, and Prior Screening Cancer Epidemiol. Biomarkers Prev., September 1, 2008; 17(9): 2231 - 2237. [Abstract] [Full Text] [PDF]

				A. McQueen, S. W. Vernon, R. E. Myers, B. G. Watts, E. S. Lee, and B. C. Tilley Correlates and Predictors of Colorectal Cancer Screening among Male Automotive Workers Cancer Epidemiol. Biomarkers Prev., March 1, 2007; 16(3): 500 - 509. [Abstract] [Full Text] [PDF]