The Theory of Reasoned Action and the Role of External Factors on Heterosexual Men's Monogamy and Condom Use1


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    This research was funded by a grant from the National Institute of Allergy and Infectious Diseases (R01 AI43195), and it received the approval of the Human Subjects Division at the University of Washington. The authors thank Margaret Hobart of the Washington State Coalition Against Domestic Violence for her help in the construction of our domestic abuse scale, and Elise DeGooyer for her editorial assistance.

Correspondence concerning this article should be addressed to Blair Beadnell, School of Social Work, University of Washington, 4101 15th Avenue, NE, Seattle, WA 98105-6299. E-mail:


Although the majority of prevention efforts have focused on women, reduction of heterosexual transmission of STDs also requires interventions for men, necessitating understanding of men's safer sex decision making. In a random sample of 486 heterosexually active men, the theory of reasoned action (TRA) was used to predict intentions to use condoms with casual partners, as well as 2 steady-partner safer sex behaviors: mutual monogamy and condom use. The basic TRA model fit the data well. Expanded models identified the mediated (via attitudes, social norms, and self-efficacy) and, for some, direct effects on intentions and behavior of selected intrapersonal, interpersonal, and sociocultural variables. Results suggest that the role of external variables might vary depending on the behaviors in question.