Validation of decisional balance and self-efficacy measures for HPV vaccination in college women.
| Autor: | Lipschitz JM; Department of Psychology, Cancer PreventionResearch Center, University of Rhode Island, 2 Chafee Road, Kingston, RI 02881, USA. jmlipschitz@gmail.com, Fernandez AC, Larson HE, Blaney CL, Meier KS, Redding CA, Prochaska JO, Paiva AL |
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| Jazyk: | angličtina |
| Zdroj: | American journal of health promotion : AJHP [Am J Health Promot] 2013 May-Jun; Vol. 27 (5), pp. 299-307. Date of Electronic Publication: 2013 Feb 12. |
| DOI: | 10.4278/ajhp.110606-QUAN-240 |
| Abstrakt: | Purpose: Women younger than 25 years are at greatest risk for human papillomavirus (HPV) infection, including high-risk strains associated with 70% of cervical cancers. Effective model-based measures that can lead to intervention development to increase HPV vaccination rates are necessary. This study validated Transtheoretical Model measures of Decisional Balance and Self-Efficacy for seeking the HPV vaccine in a sample of female college students. Design: Cross-sectional measurement development. Setting. Online survey of undergraduate college students. Subjects: A total of 340 female students ages 18 to 26 years. Measures: Stage of Change, Decisional Balance, and Self-Efficacy. Analysis: The sample was randomly split into halves for exploratory principal components analyses (PCAs), followed by confirmatory factor analyses (CFAs) to test measurement models. Multivariate analyses examined relationships between constructs. Results: For Decisional Balance, PCA indicated two 4-item factors (Pros -α = .90; and Cons -α = .66). CFA supported a two-factor correlated model, χ(2)(19) = 39.33; p < .01; comparative fit index (CFI) = .97; and average absolute standardized residual statistic (AASR) = .03; with Pros α = .90 and Cons α = .67. For Self-Efficacy, PCA indicated one 6-item factor (α = .84). CFA supported this structure, χ(2)(9) = 50.87; p < .05; CFI = .94; AASR = .03; and α = .90. Multivariate analyses indicated significant cross-stage differences on Pros, Cons, and Self-Efficacy in expected directions. Conclusion: Findings support the internal and external validity of these measures and their use in Transtheoretical Model-tailored interventions. Stage-construct relationships suggest that reducing the Cons of vaccination may be more important for HPV than for behaviors with a true Maintenance stage. |
| Databáze: | MEDLINE |
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