From: Nathan Wolfe < ;• Sent: Wednesday, April 17, 2013 8:04 PM To: Jeffrey Epstein Subject: Fwd: Jeffrey Below are some references that show how sexual behavior questionnaires have been validated. I believe these issues have been well addressed and am not concerned that we can get good data on changes in sexual behavior within individuals over time in relation to variables like the incidence of new STIs Nathan Forwarded message From: Karen Saylors Date: Wed, Apr 17, 2013 at 12:55 PM Subject: Re: To: Nathan Wolfe Cc: Kasey Kissick The test-retest approach with a strong sexual behavior scale seems like the best way to screen: 1) Test-retest reliability and predictors of unreliable reporting for a sexual behavior questionnaire for U.S. men. chttp://www.ncbi.nlm.nih.gov/pubmed/19705273> 2) Test-retest reliability of self-reported HIV/STD-related measures among African-American adolescents in four U.S. cities. <http://www.ncbi.nlm.nih.gov/pubmed/19237106> Another approach is interpartner reliability/comparison, which would lead us in the direction of partner contact tracing: 3) Reliability of self-reported sexual histories: test-retest and interpartner comparison in a sexually transmitted diseases clinic. <http://www.ncbi.nlm.nih.gov/pubmed/9918321> 4) Interpartner reliability of reporting of recent sexual behaviors. <http://www.ncbi.nlm.nih.gov/pubmed/1746526> There are lots of standardized instruments on sexual behavior and STI transmission, including the National Survey of Family Growth and General Social Survey: EFTA_R1_01959435 EFTA02674960