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IMPROVING SURVEYS of SEXUAL BEHAVIOR

IMPROVING SURVEYS of SEXUAL BEHAVIOR. USA National STD and Behavior Measurement Experiment (NSBME). Charles Turner Alia Al- Tayyib Susan Rogers Maria Villarroel Anthony Roman James Chromy Phillip Cooley. Funded by NIMH and NICHD (R01-MH56319 & R01-HD31067). OBJECTIVE.

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IMPROVING SURVEYS of SEXUAL BEHAVIOR

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  1. IMPROVING SURVEYS of SEXUAL BEHAVIOR USA National STD and Behavior Measurement Experiment (NSBME)

  2. Charles Turner Alia Al-TayyibSusan RogersMaria VillarroelAnthony RomanJames ChromyPhillip Cooley Funded by NIMH and NICHD (R01-MH56319 & R01-HD31067)

  3. OBJECTIVE • Importance of Self-Report • Final Installment of NSBME • “PIs know best”

  4. SELF-REPORT • Almost everything we know about sexual behaviors • Population Surveys • Evaluation of Interventions • Clinical Medicine • Privacy, SAQs, and , Audio-CASI

  5. T-ACASI • Developed by Phil Cooley in 1994-95. • Human interviewers recruit respondents and introduce survey • Computer-recorded questions played and respondents used telephone keypad to respond • First demonstration of impact of T-ACASI: 1996 ASC meetings

  6. T-ACASI Advantages • Entirely private administration • Completely standardized – everyone hears exactly same question wording, intonation • Eases multilingual interviewing

  7. NSBME: National STD and Behavior Measurement Experiment Two probability samples of English speaking adults ages 18-45 living in households with telephones National stratum, N=1,543 Baltimore stratum, N=744 Telephone numbers randomly assigned to T-IAQ or T-ACASI condition

  8. NSBMEFINDINGS TO DATE Increased illicit but not licit drug useAddictions, 2004Increased same-gender sex --- particularly in gay-unfriendly regionsPublic Opinion Quarterly, 2006Increased reporting of STD historySTDs, 2008Increased reporting of unpopular social attitudesPublic Opinion Quarterly, 2009

  9. Heterosexual SexForthcomingInternational Journal of EpidemiologySummer / Fall, 2009

  10. No Sexual Experience OR= 2.1, P = 0.001

  11. No Main Sex Partner in Past Year OR= 1.9, P = 0.001

  12. New Sex Partners, 12 monthsp < 0.001

  13. Extra-Relationship Sex duringCommitted Relationship OR= 1.6, p = .001

  14. Never Oral Sex OR= 0.5, p < 0.001 OR=0.5, p < 0.001

  15. Ever Heterosexual Anal Sex OR= 1.7, p < 0.001

  16. Never Sex while Menstruating OR= 0.7, p < 0.001

  17. Used Condom Every TimePast Year OR = 0.5, p < 0.001

  18. Difficulty havingSatisfying Sex OR = 1.4, p = 0.011 OR = 1.3, p = 0.097

  19. “PIs Know Best”

  20. “Very Easy” to become Sexually Aroused OR = 2.8 p < 0.001 OR = 1.5 p = 0.003 OR = 1.8 p < 0.001

  21. Always Asked or Told aboutPast Sex Partners OR = 1.4, p = 0.058 OR = 1.5, p = 0.028

  22. CONCLUSION T-ACASI Reduces Self-Report Bias What People Do vs. What People Say They Do Lessons in Fallibility of PI Assumptions

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