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Measuring Concurrency Attitudes: Development and Validation of a Vignette-Based Scale

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  • Anna B Cope
  • Catalina Ramirez
  • Robert F DeVellis
  • Robert Agans
  • Victor J Schoenbach
  • Adaora A Adimora

Abstract

Background: Concurrent sexual partnerships (partnerships that overlap in time) may contribute to higher rates of HIV transmission in African Americans. Attitudes toward a behavior constitute an important component of most models of health-related behavior and behavioral change. We have developed a scale, employing realistic vignettes that appear to reliably measure attitudes about concurrency in young African American adults. Methods: Vignette-based items to assess attitudes about concurrency were developed following focus groups and cognitive testing of items adapted from existing scales assessing psychosocial constructs surrounding related sexual behaviors. The new items were included in a telephone survey of African American adults (18–34 years old) in Eastern North Carolina immediately before and after a radio campaign designed to discourage concurrency. We performed an exploratory factor analysis on each sample (pre- and post-campaign) to cross-validate results. We retained factors with a primary loading of ≥0.50 and no secondary loading >0.30. Cronbach’s coefficient alpha was used to evaluate internal reliability. Associations in the predicted direction between the mean responses to items on the final factor and known correlates of concurrency validated the scale. Results: Factor analysis in a random pre-campaign subsample yielded a one-factor 6-item scale with acceptable internal consistency (Cronbach’s α = 0.79). As expected, the attitude factor was positively associated with participation in concurrent partnerships, whether assessed by self-report (r = 0.298, p

Suggested Citation

  • Anna B Cope & Catalina Ramirez & Robert F DeVellis & Robert Agans & Victor J Schoenbach & Adaora A Adimora, 2016. "Measuring Concurrency Attitudes: Development and Validation of a Vignette-Based Scale," PLOS ONE, Public Library of Science, vol. 11(10), pages 1-16, October.
  • Handle: RePEc:plo:pone00:0163947
    DOI: 10.1371/journal.pone.0163947
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    References listed on IDEAS

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    1. Ajzen, Icek, 1991. "The theory of planned behavior," Organizational Behavior and Human Decision Processes, Elsevier, vol. 50(2), pages 179-211, December.
    2. Adimora, A.A. & Schoenbach, V.J. & Doherty, I.A., 2007. "Concurrent sexual partnerships among men in the United States," American Journal of Public Health, American Public Health Association, vol. 97(12), pages 2230-2237.
    3. Kelly, J.A. & St Lawrence, J.S. & Smith, S. & Hood, H.V. & Cook, D.J., 1987. "Stigmatization of AIDS patients by physicians," American Journal of Public Health, American Public Health Association, vol. 77(7), pages 789-791.
    4. Thomas, James C. & Thomas, Karen K., 1999. "Things ain't what they ought to be: social forces underlying racial disparities in rates of sexually transmitted diseases in a rural North Carolina county," Social Science & Medicine, Elsevier, vol. 49(8), pages 1075-1084, October.
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