The Psychometric Properties of the Sexual Experiences Survey-Short Form Victimization (SES-SFV) and Characteristics of Sexual Victimization Experiences in College Men
abuse; aggression; childhood trauma questionnaire; college students; exposure; men; national sample; prevalence; Psychology; psychometric; rape; reliability; revictimization; sexual victimization; validity
Estimates of the rate of sexual victimization in college men vary wildly, likely because of the lack of validated measures. This study provides psychometric data on the Sexual Experiences Survey-Short Form Victimization (SES-SFV) and basic descriptive characteristics of sexual victimization of college men via the SES-SFV. Participants (n = 405) completed a web survey containing the study measures; a subset of 69 participants completed the SES-SFV again 1-3 weeks later. Convergent validity correlations were consistent but modest in size. Two-week test-retest reliability estimates varied widely by the type of sexual victimization assessed and scoring format used; dichotomous scores were the most reliable and category scores the worst. More than 1 in 4 participants (28%) reported experiencing sexual victimization at Time 1; most reported victimization frequencies greater than 1 (22.8% of sample). Using behaviorally specific items, 1 in 7 reported experiencing rape (14.1%). The most common type of sexual victimization experienced was unwanted sexual contact. Rape acknowledgment among men who experienced rape (12.2%) was much lower than has been observed in women. Our results indicate mixed evidence for the reliability and validity of the SES-SFV in college men, highlight important characteristics of sexual victimization in college men, and demonstrate the need for further research on the best strategies for the assessment of sexual victimization in college men.
Anderson R E; Cahill S P; Delahanty D L
Psychology of Men & Masculinity
2018
2018-01
Journal Article or Conference Abstract Publication
<a href="http://doi.org/10.1037/men0000073" target="_blank" rel="noreferrer noopener">10.1037/men0000073</a>
Non-Monogamous Copulations and Potential Within-Group Mating Competition in White-Faced Saki Monkeys (Pithecia pithecia)
aggression; behavior; group-dynamics; harassment; japanese macaques; mating harassment; mating system; multimale; pair living; primate; sexual coercion; social-organization; social-organization; sperm; Zoology
Many primates display within-species variation in social organization and mating system. Individuals of these species may be confronted with both the challenges of between-group competition to exclude same-sex competitors as well as within-group competition for mating opportunities. Free-ranging white-faced saki monkeys (Pithecia pithecia) live in both male-female pairs and small multi-male, multi-female groups. Despite commonly held views that this species is monogamous, there are currently no published accounts of mating patterns in the genus Pithecia. I recorded copulations and sexual behavior from three free-ranging groups of white-faced sakis at Brownsberg Naturepark, Suriname over a period of 17 months. Groups displayed both monogamous and polygynandrous mating. Individuals in polygynandrous groups were not observed to mate more frequently with certain partners. Copulation harassment occurred in 8.6% of copulations (total N=81) and was performed by both sexes. This harassment successfully prevented ejaculation in six out of seven instances and harassment by males resulted in male-male aggression on four occasions. Two cases of female-directed sexual aggression by males were also observed, which may indicate that males use sexual coercion to influence female mating behavior. Although based on a small number of groups, these data show that white-faced sakis display variability in mating system and that this variability is not directly dictated by social organization. Furthermore, groups with promiscuous copulations exhibit behaviors indicative of within-group mating competition. Am. J. Primatol. 75:817-824, 2013. (c) 2013 Wiley Periodicals, Inc.
Thompson C L
American Journal of Primatology
2013
2013-08
Journal Article
<a href="http://doi.org/10.1002/ajp.22142" target="_blank" rel="noreferrer noopener">10.1002/ajp.22142</a>