Department of Psychology, Old Dominion University.
J Sex Res. 2012;49(1):13-26. doi: 10.1080/00224499.2011.565428. Epub 2011 May 24.
This study examined pathways to early coital debut among early to middle adolescent girls in the United States. In a two-year longitudinal study of 104 adolescent girls, recursive partitioning (RP) analyses were conducted to examine the specific factors that were related to engaging in first intercourse by the 10th grade among adolescent girls who had not yet engaged in sexual intercourse by the 8th grade. RP analyses identified subsamples of girls who had low, medium, and high likelihoods of engaging in early coital debut based on six variables (i.e., school aspirations, early physical intimacy experiences, depression, body objectification, body image, and relationship inauthenticity). For example, girls in the lowest likelihood group (3% had engaged in sex by the 10th grade) reported no prior experiences with being touched under their clothes, low body objectification, high aspirations to complete graduate education, and low depressive symptoms; girls in the highest likelihood group (75% had engaged in sex by the 10th grade) also reported no prior experiences with being touched under their clothes, but had high levels of body objectification. The implications of these analyses for the development of female adolescent sexuality, as well as for advances in quantitative methods, are discussed.
本研究考察了美国早期至中期少女早期发生性行为的途径。在一项对 104 名少女进行的为期两年的纵向研究中，采用递归分区（RP）分析来研究与八年级时仍未发生性行为的少女在十年级时首次发生性行为相关的具体因素。RP 分析根据六个变量（即学业抱负、早期身体亲密经历、抑郁、身体客体化、身体形象和关系不真实）确定了具有低、中、高发生早期性行为可能性的少女亚组。例如，处于最低可能性组（3%的人在 10 年级时有过性行为）的女孩报告称，她们没有过被人在衣服下面触摸的经历，身体客体化程度低，有完成研究生教育的强烈愿望，抑郁症状低；处于最高可能性组（75%的人在 10 年级时有过性行为）的女孩也报告称，她们没有过被人在衣服下面触摸的经历，但身体客体化程度很高。这些分析对女性青少年性发育的发展以及定量方法的进步都具有重要意义。
