? ? Although prior research has demonstrated that relationship characteristics and partner type (e.g., casual vs. primary sexual partner) are associated with HIV risk behavior, the role of relationship dynamics in sexual risk behavior has only begun to be examined. This grant application requests support for a 4 1/2-year project to examine relationship dynamics within the heterosexual involvements of men and women of reproductive age at high-risk for HIV infection. The overall objective of the proposed research is to improve understanding of the influence of relationship dynamics on sexual risk perceptions, intentions, and behaviors. Relationship dynamics are defined as factors present at a specific time within a given dyadic involvement that emerge as a result of that involvement (e.g., level of commitment, sexual decision-making).
The specific aims of the study are to 1) track transitions in partnerships and associated relationship dynamics over time among a sample of high-risk men and women; 2) explore partnership-specific relationship dynamics associated with initiation of concurrent sexual partnerships and the duration of concurrence, overall and by gender; 3) assess the differential predictive abilities of partnership-specific factors with respect to individual-level sexual risk perceptions, intentions and behaviors, overall and by gender; and 4) determine whose condom use intention best prospectively predicts condom use among dyad members who differ in their expressed intentions, using data from both dyad members. A longitudinal study of 528 individuals with four distinct measurement occasions at four-month intervals will be conducted. The study will track high-risk men and women as they initiate, maintain, and/or terminate sexual relationships. At Time 3, an estimated 150 men and 150 women who are the sexual partners of members of the initial sample will also be enrolled in the study. At Times 3 and 4, data will be collected from both members of the dyad separately and together and analyzed using the Actor-Partner Interdependence Model (APIM). Findings will have significant implications for the design of interventions for reducing the risk of HIV infection among individuals in close relationships by addressing the dynamics of sexual partnerships. ? ?

National Institute of Health (NIH)
Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD)
Research Project (R01)
Project #
Application #
Study Section
Behavioral and Social Science Approaches to Preventing HIV/AIDS Study Section (BSPH)
Program Officer
Newcomer, Susan
Project Start
Project End
Budget Start
Budget End
Support Year
Fiscal Year
Total Cost
Indirect Cost
Oregon State University
Public Health & Prev Medicine
Other Domestic Higher Education
United States
Zip Code
Girme, Yuthika U; Agnew, Christopher R; VanderDrift, Laura E et al. (2018) The ebbs and flows of attachment: Within-person variation in attachment undermine secure individuals' relationship wellbeing across time. J Pers Soc Psychol 114:397-421
Harvey, S Marie; Oakley, Lisa P; Washburn, Isaac et al. (2018) Contraceptive Method Choice Among Young Adults: Influence of Individual and Relationship Factors. J Sex Res 55:1106-1115
Harvey, S Marie; Washburn, Isaac; Oakley, Lisa et al. (2017) Competing Priorities: Partner-Specific Relationship Characteristics and Motives for Condom Use Among At-Risk Young Adults. J Sex Res 54:665-676
Agnew, Christopher R; Harvey, S Marie; VanderDrift, Laura E et al. (2017) Relational underpinnings of condom use: Findings from the project on partner dynamics. Health Psychol 36:713-720
Sanchez, Diana M; Schoenbach, Victor J; Harvey, S Marie et al. (2016) Can Young Adults Accurately Report Sexual Partnership Dates? Factors Associated With Interpartner and Dyad Agreement. Sex Transm Dis 43:324-31
Sanchez, Diana M; Schoenbach, Victor J; Harvey, S Marie et al. (2016) Association of perceived partner non-monogamy with prevalent and incident sexual concurrency. Sex Transm Infect 92:266-71
Warren, Jocelyn T; Harvey, S Marie; Washburn, Isaac Joel et al. (2015) Concurrent sexual partnerships among young heterosexual adults at increased HIV risk: types and characteristics. Sex Transm Dis 42:180-4
VanderDrift, Laura E; Agnew, Christopher R; Harvey, S Marie et al. (2013) Whose intentions predict? Power over condom use within heterosexual dyads. Health Psychol 32:1038-46