Little is known regarding how respondents interpret terms that are commonly
used in sexual behavior surveys. The present study assessed the impact of
four factors on respondents' judgements of whether the hypothetical actors
"Jim" and "Susie" would consider a particular behavior that they had engage
d in to be "sex." The four factors were respondent's gender, actor's gender
, type of act (vaginal, anal, or oral intercourse), and who achieved orgasm
(neither, Jim only, Susie only ol both). Two hundred twenty-three undergra
duates (22.2 +/- 2.2 years; 65% female) were asked to read 16 scenarios fea
turing Jim and Susie and to judge whether each actor would consider the des
cribed behavior to be sex. Results indicated that vaginal and anal intercou
rse were considered sex render most circumstances. Whether oral intercourse
was labeled as sex depended on the gender and viewpoint of the actor, and
whether orgasm occurred. Findings suggest that items in sexual behavior sur
veys need to be clearly delineated to avoid subjective interpretations by r
espondents.