Gaither George A, Sellbom Martin, Meier Brian P
Department of Psychological Science, Ball State University, Muncie, IN 47306-0520, USA.
J Sex Res. 2003 Aug;40(3):240-8. doi: 10.1080/00224490309552188.
Much of the literature on volunteer bias in sexual interest research has been limited to either identifying variables on which volunteers differ from nonvolunteers or examining how the intrusiveness of the measurement device affects volunteer rates. The present study was designed to examine whether stimulus content would affect volunteer rates and volunteer/nonvolunteer differences in a large sample of college students (206 men and 358 women). The study also sought to determine whether such findings could also apply to research that recruits from exclusively heterosexual samples. Students completed questionnaires in small groups and were asked whether they would be willing to volunteer for studies that would involve viewing and rating five different types of sexually explicit images (nude men, nude women, heterosexual behavior, male homosexual behavior, and female homosexual behavior). Results indicate that men and women differed in the types of images that they would volunteer to view, based upon the content of the images. Furthermore, volunteers for each type of image reported significantly greater self-monitoring as well as sexual and general sensation seeking than did nonvolunteers, while differences on other measures were less consistent. Discussion is given to specific ways in which the findings and generalizability of sexual interest study results can be affected.
性趣研究中关于志愿者偏差的许多文献，要么局限于识别志愿者与非志愿者存在差异的变量，要么局限于考察测量工具的侵扰性如何影响志愿者比率。本研究旨在考察刺激内容是否会影响大学生大样本（206名男性和358名女性）中的志愿者比率以及志愿者与非志愿者之间的差异。该研究还试图确定这些发现是否也适用于仅从异性恋样本中招募参与者的研究。学生们以小组形式完成问卷，并被问及是否愿意志愿参与涉及观看和评价五种不同类型露骨色情图片（男性裸体、女性裸体、异性性行为、男性同性恋行为和女性同性恋行为）的研究。结果表明，基于图片内容，男性和女性在愿意志愿观看的图片类型上存在差异。此外，每种图片类型的志愿者在自我监控以及性和一般感觉寻求方面的报告得分显著高于非志愿者，而在其他测量指标上的差异则不太一致。文中讨论了性趣研究结果的发现及普遍性可能受到影响的具体方式。
