Sexual Aggression Perpetration Research Articles

Community-Level Factors As Positive and Negative Correlates of Sexual Aggression Perpetration Among Adolescent Boys

ABSTRACT Often, perpetrators of sexual violence first aggress in their teens. Presently, very little is known about environmental factors that may influence adolescents’ engagement in sexual aggression. Drawing upon data collected at 27 high schools in the Northeast United States, this study is the first to test the association between community-level factors and male adolescents’ sexual aggression. A series of backward linear regressions determined that 10 of 19 community variables were associated with males’ sexual aggression, which were then used to generate a ratio of positive to negative correlates of sexual aggression for each high school. In multilevel analyzes, as hypothesized, the ratio of positive to negative correlates was positively associated with schools’ sexual aggression perpetration rates. We discuss the study’s implications for future sexual assault research and prevention interventions.

Alcohol Expectancies for Sexual Enhancement, Event-Level Alcohol Use, and Likelihood of Sexual Aggression Perpetration: A Timeline Followback Approach

ABSTRACT Sexual aggression (SA) is a significant public health problem, with the majority of SA involving alcohol. The present study examined associations between alcohol expectancies for sexual enhancement, event-level alcohol use, and the likelihood of SA perpetration. Young, adult non-problem drinking men participated in a laboratory session and completed a background survey that included measures of alcohol expectancies. Subsequently, men completed 6-week and 3-month follow-up surveys in which they reported their sexual experiences each day during the intervening 6-week period using Timeline Followback procedures. The analytic sample consisted of the 421 men (Mage = 24.66, SD = 2.69) who reported having sex at least once during the follow-up period. Multilevel models showed a significant alcohol expectancies X alcohol use interaction at the between-person level: Controlling for time and alcohol expectancies for aggression, stronger alcohol expectancies for sexual enhancement were associated with greater SA perpetration likelihood among men who consumed high amounts of alcohol before sexual encounters but not among men who consumed low amounts. Alcohol prevention programs should consider addressing men’s alcohol expectancies for sexual enhancement to reduce risk for SA perpetration.

Perceived Impact of COVID-19 on Cyberabuse, Sexual Aggression, and Intimate Partner Violence Among U.S. Young Adults.

Quarantine guidelines that arose with the COVID-19 pandemic limited opportunities for social interaction, raising concerns about increases in intimate partner violence and cyberabuse while simultaneously restricting access to help. The current study assessed increases in cyberabuse, sexual aggression, and intimate partner violence victimization and perpetration during the first year of the COVID-19 pandemic in a U.S. nationally representative sample of young adults ages 18 to 35, recruited from a probability-based household panel. Data were collected between November 2020 and May 2021. Descriptive analyses were conducted to assess the prevalence of any self-reported increase in cyberabuse, sexual aggression, or intimate partner victimization or perpetration during the COVID-19 pandemic. Logistic regression models were run for each outcome measuring any increase compared to no increase. Approximately one in ten U.S. young adults ages 18 to 35 reported experiencing an increase in cyberabuse victimization (12.6%) and cyberabuse perpetration (8.9%) during the pandemic. Similar proportions were observed for increased sexual aggression victimization (11.8%) and perpetration (9.0%). More than one in five respondents (21.4%) reported that their intimate partner was more physically, sexually, or emotionally aggressive toward them during the pandemic. Conversely, 16.2% of respondents reported that they were more physically, sexually, or emotionally aggressive themselves toward an intimate partner, compared to their behavior before the onset of the pandemic. Having an intimate partner and staying at home more than usual during the pandemic were protective factors for both cyberabuse and sexual aggression victimization. Respondent age, education, and race and ethnicity were not associated with increased victimization or perpetration of cyberabuse or sexual aggression. However, women reported lower odds of increased sexual aggression perpetration than men. These findings improve understanding of changes to interpersonal abuse and associated risk factors during a period of social disruption.

Pathways from childhood sexual abuse to sexual aggression victimization and perpetration in adolescence and young adulthood: a three-wave longitudinal study

ABSTRACT Background: Childhood sexual abuse (CSA) has been identified as a risk factor for later sexual aggression perpetration and vulnerability factor for sexual victimization. However, the use of cross-sectional designs, the focus on female victimization and male perpetration, and the lack of evidence from outside North America limit the existing knowledge base. Objective: The study was designed to examine pathways from CSA to sexual revictimization and sexual aggression perpetration after the age of consent. Method: A total of 588 university students in Germany (308 female) took part in a three-wave longitudinal study covering 23 months. At each wave (T1–T3), all participants completed measures of sexual aggression victimization and perpetration. Experiences of CSA were measured at T1. Results: The rate of CSA was significantly higher for women (20.8%) than for men (12.4%). Rates of sexual victimization for women were 60.9% at Time 1 (since age 14), 22.3% at Time 2 (since T1), and 17.4% at Time 3 (since T2). For men, the rates were 39.2% at Time 1, 15.9% at Time 2, and 14.1% at Time 3. Rates of sexual aggression perpetration for women were 10.6% at Time 1 (since age 14), 3.5% at Time 2 (since T1), and 3.6% at Time 3 (since T2). For men, the rates were 18.0% at Time 1, 6.2% at Time 2, and 3.8% at Time 3. The gender differences in victimization and perpetration were significant only at T1. CSA predicted higher odds of sexual aggression victimization and perpetration cross-sectionally at T1 and indirectly at T2 and T3 via T1. Gender did not moderate the associations. Conclusion: The results confirm previous findings of elevated rates of sexual aggression victimization and perpetration in adolescence and young adulthood in victims of CSA. The implications for understanding and preventing adverse sexuality-related outcomes of CSA are discussed.

Pornography Use, Perceived Peer Norms, and Attitudes Toward Women: A Study of College Men

Men’s negative attitudes toward women represent a known risk factor for sexual aggression perpetration. Sexual aggression is a widespread public health concern, especially among emerging adults, and is associated with a multitude of negative consequences. The current study evaluated whether pornography-related perceived peer norms, own approval, and self-reported use are associated with negative attitudes toward women in a sample of college men. Types of pornography examined included pornography (in general); pornography that included portrayals of bondage, whipping, and spanking but without explicit dissent (i.e., pornography that depicted bondage/physical aggression); as well as pornography consisting of sexually explicit rape depictions in which force is used. Self-report measures assessing the frequency of pornography exposure, self-acceptance of pornography use, and perceived peer norms were collected from 283 college men. A multiple linear regression model revealed that only perceived peer norms for acceptance of pornography that depicted rape was positively associated with negative attitudes toward women. Findings highlight the importance of better understanding and addressing perceived peer norms in sexual assault prevention programs for college men.

Factors associated with victimization and perpetration of sexual aggression in Chilean university students

Introduction: Sexual aggression is a type of violence considered a public health problem that can affect people at any time of their lives. This investigation had three objectives: 1) to know the prevalence of victimization and perpetration of sexual aggression and its subtypes in the Chilean university context, 2) to identify the association of sex on the prevalence of victimization and perpetration of sexual aggression and its subtypes, and 3) to identify the association of alcohol consumption and victim-perpetrator relationship in the subtypes of victimization and perpetration of sexual aggression based on sex. Materials and methods: Descriptive cross-sectional study, with a sample of 1728 students (65.3% women) with a median age of 22 years. Results: 42.6% and 8.3% of the students reported at least one incident of victimization and perpetration of sexual aggression respectively in the last 12 months; an association of sex with the victimization of sexual aggression χ2 (1, N = 1728) = 101,425, p < .001 and its subtypes was identified; no sex association was identified with the perpetration of sexual aggression, but with sexual coercion χ2 (1, N = 1728) = 5,122, p < .05. In the case of alcohol consumption and victim-perpetrator relationship, they were associated with some subtypes of victimization and perpetration of sexual aggression. Conclusion: the findings contribute to the estimation of the magnitude of sexual aggression and associated factors in the university context, which should be explored in depth in order to create preventive programs for victimization and perpetration of sexual aggression.

An Application of the Confluence Model of Sexual Aggression Among Young Adult Male Soldiers.

Sexual violence in the U.S. military is a serious concern. Whereas numerous studies document the prevalence of sexual violence among service members, far less research has examined etiological risk factors for sexual aggression perpetration among service members. The present study sought to evaluate the applicability of the Confluence Model of Sexual Aggression among a sample of young adult men engaged in active-duty military service within the U.S. Army. Anonymous surveys were completed by 326 male soldiers between the ages of 18 and 24 at a large military installation in the Southeastern region of the United tStates. Men's likelihood to engage in sexual aggression was operationalized as men's perceived likelihood to persist with sexual activity despite a partner's resistance. Aligning with the Confluence Model of Sexual Aggression, two composite variables reflecting hostile masculinity and tendency toward impersonal sex were created. A linear regression indicated that the main effects of hostile masculinity and impersonal sex were significantly associated with greater perceived likelihood of sexual aggression perpetration. Results also revealed that while the interaction term between hostile masculinity and impersonal sex was significant, the direction of the relationship suggests that the effect of impersonal sex is weaker at higher levels of hostile masculinity. These findings lend evidence to help identify those at elevated risk for perpetrating sexual aggression, as well as informing programmatic efforts to prevent sexual assault within the military.

Evaluating a Theory-Based Online Program for Preventing Sexual Aggression: An Experimental-Longitudinal Study With German University Students.

This pre-registered study evaluated an intervention designed to reduce sexual aggression perpetration and victimization by changing risky scripts for consensual sexual interactions and corresponding risky sexual behavior, and by improving sexual self-esteem, refusal assertiveness, and initiation assertiveness. In a four-wave longitudinal study covering 23 months, 1181 university students in Germany (762 female) were randomly assigned to an intervention and a no-intervention control group. The intervention group completed six weekly modules addressing the targeted theory-based risk and vulnerability factors of sexual aggression perpetration and victimization. Controlling for baseline levels (T1), the intervention group showed less risky sexual scripts one week post-intervention (T2), which predicted less risky sexual behavior nine months later (T3), which predicted lower odds of sexual aggression perpetration and victimization 12 months later (T4). No direct intervention effects on rates of sexual aggression perpetration and victimization at T3 and T4 were found. No indirect intervention effect on sexual aggression was found via sexual self-esteem and sexual assertiveness. However, sexual self-esteem at T2, which was higher in the intervention group, predicted lower odds of sexual aggression victimization at T3 via higher initiation assertiveness at T3. Implications for reducing sexual aggression and conceptualizing risk and vulnerability factors of sexual aggression are discussed.

Scripts for consensual sex as risk factors for sexual aggression: A three-wave longitudinal study with university students in Germany

Background: Sexual aggression is a major problem among young adults. Sexual scripts are cognitive schemata representing typical elements of sexual interactions and serve as guidelines for sexual behavior. They may be linked to the risk of sexual aggression if they contain elements known to be associated with the perpetration of sexual aggression, such as alcohol use, sex with casual partners, and ambiguous communication of sexual intentions. Objectives: The study was designed to examine pathways from risky sexual scripts for consensual sex to risky sexual behavior and sexual aggression perpetration in men and women. Design: The study employed a three-wave longitudinal design with 12-month intervals. Participants were 2425 university students in Germany (58% female). Methods: At each wave (Time 1–Time 3), participants completed measures of risky sexual scripts and risky sexual behavior, defined by three aspects: Casual sex, alcohol consumption, and ambiguous communication of sexual intentions. Reports of sexual aggression perpetration were collected since the age of consent (14 years; Time 1) or in the past 12 months (Time 2 and Time 3) using the Sexual Aggression and Victimization Scale. Results: Perpetration rates for men were 9.8% at Time 1, 12.2% at Time 2, and 9.5% at Time 3. For female participants, the corresponding rates were 6.0% at Time 1, 6.3% at Time 2, and 5.1% at Time 3. The gender difference was significant at Time 1 and Time 2, but not at Time 3. As hypothesized, more risky sexual scripts prospectively predicted more risky sexual behavior, which predicted a higher risk of sexual aggression perpetration. The findings held for men and women and for participants with exclusively opposite-sex and with both opposite- and same-sex contacts. Conclusion: Scripts for consensual sex may be risk factors for sexual aggression among men and women if they contain elements identified as risk factors for sexual aggression. The findings suggest that changing risky sexual scripts for consensual sex may be a promising strategy for preventing sexual aggression perpetration.

Examining the Psychometric Properties of the Sexual Initiation Strategies Scale (SISS): A New Self-Report Measure of Sexual Aggression Perpetration History

ABSTRACT Psychometrically-sound measures of sexual aggression are essential for identifying risk factors for perpetration and examining the behavioral impact of prevention interventions. This project reports on the psychometric evaluation of a new measure of sexual perpetration—the Sexual Initiation Strategies Scale (SISS)—which was designed to correct for weaknesses in prior measures. In Study 1, scores on the SISS demonstrated reasonable convergent and divergent validity and test-rest reliability among a sample of mixed gender college students (N = 575). Participants were more likely to endorse having engaged in sexually aggressive behavior on the SISS than on two other measures of sexual aggression. In Study 2, rates of endorsement on the SISS also were higher than on the most commonly-used measure of perpetration in a community sample of men and women (N = 551) in which gay, lesbian, and bisexual participants were oversampled. In general, the SISS seemed to perform well as a measure of sexual aggression perpetration in both men and women and in those reporting both same- and other-gender sexual aggression. Advantages and disadvantages of the SISS as compared to other measures are discussed.

A Theory-Based Intervention to Reduce Risk and Vulnerability Factors of Sexual Aggression Perpetration and Victimization in German University Students

ABSTRACT The current study evaluated an intervention program, designed by the authors and based on the theory of sexual scripts and social learning theory, to reduce empirically established risk and vulnerability factors of sexual aggression. A sample of 1,181 university students in Germany (762 female) were randomly assigned to an intervention and a no-intervention control group. The intervention group completed six modules addressing established antecedents of sexual aggression perpetration and victimization: risky sexual scripts, risky sexual behavior, low sexual self-esteem, low sexual assertiveness, acceptance of sexual coercion, and perceived realism of pornography. After baseline (T1), intervention effects were measured one week after the last module (T2), nine months later (T3), and another 12 months later (T4). The intervention group showed significantly less risky sexual scripts and higher sexual self-esteem at T2, T3, and T4. The intervention indirectly reduced risky sexual behavior at T3 and T4 via less risky sexual scripts at T2 and increased sexual assertiveness at T3 and T4 via higher sexual self-esteem at T2. No intervention effects were found on the acceptance of sexual coercion and pornography realism. The implications of the findings for reducing the prevalence of sexual aggression perpetration and victimization are discussed.

Correlates of Bystander Intervention Among Heavy Drinking College Men.

The present study utilized survey assessments to examine correlates of bystander intervention intentions among heavy drinking college men (N = 210). Intentions to engage in bystander intervention were associated with fewer heavy drinking days, lower alcohol-related consequences, greater use of strategies to limit drinking, and lower endorsement of alcohol expectancies. A range of constructs commonly associated with perpetration of sexual aggression demonstrated a negative association with intentions to engage in bystander intervention. Multivariate analyses revealed that greater use of strategies to limit drinking and lower pornography use emerged as predictors of intentions to engage in bystander intervention.

Sexual Aggression among Women and Men in an Iranian Sample: Prevalence and Correlates

This pre-registered study examined the prevalence and correlates of sexual aggression in a sample of 530 Iranians (322 women, 208 men) with a behaviorally specific questionnaire distinguishing between different coercive strategies, victim-perpetrator relationships, and sexual acts. Significantly more women (63.0%) than men (51.0%) experienced at least one incident of sexual aggression victimization since the age of 15 years, and significantly more men (37.0%) than women (13.4%) reported at least one incident of sexual aggression perpetration. In women and men, the experience of child sexual abuse predicted sexual victimization and sexual aggression perpetration after the age of 15 years, both directly and indirectly through higher engagement in risky sexual behavior. Greater endorsement of hostile masculinity among men explained additional variance in the prediction of sexual aggression perpetration. This research is a first step towards documenting and explaining high rates of sexual aggression victimization and perpetration among Iranian women and men, providing important information for sex education as well for the prevention of sexual aggression. However, to achieve these goals, we highlight the need for systematic actions in all educational, social, and legal sectors of Iranian society.

Testing the reliability of sexual aggression self-reports

ABSTRACT We examined reliability of self-reports of sexual aggression (SA) perpetration and victimisation in ongoing college relationships (n = 638), comparing confidential online self-reports at Time 1 with self-reports under a lab-based bogus pipeline condition at Time 2. High rates of SA victimisation were reported; 46% of women and 47% of men indicated their current partner had been sexually aggressive. However, SA victimisation was associated with fear of one’s partner among women only. These data suggest young men and women may tolerate some SA by their romantic partners. This may not be evident in research that fails to assess the relationship context, as individuals otherwise may not view SA enacted by a current partner as victimisation. The most consistent reporting was among women, in self-reporting their SA perpetration. The least consistent reporting was among men, in their self-reports of their SA victimisation. Both genders tended to underreport their SA victimisation. Men and women with lenient attitudes towards SA were the least reliable reporters of their SA perpetration, and men with antisocial traits responded in a way that suggests possible overreporting of SA victimisation in this group. Practice impact statement This study highlights the strikingly high rate of sexually aggressive experiences in young adult relationships. It also discusses gender differences in fear of a sexually aggressive partner and in the reliability of self-reports of sexual aggression and identifies traits associated with reliable versus unreliable reporting of sexual aggression.

Links of Perceived Pornography Realism with Sexual Aggression via Sexual Scripts, Sexual Behavior, and Acceptance of Sexual Coercion: A Study with German University Students.

Exposure to pornographic material has been linked to sexual aggression perpetration and victimization in a large body of research. Based on social learning theory and 3A theory of script learning, this study contributes to this research by testing the hypothesis that the more realistic pornography is perceived to be by young adults, the more likely they are to experience and engage in sexual aggression. Two underlying pathways were proposed: one path via scripts and patterns of sexual behavior regarding consensual sexual interactions that contain established risk factors for sexual aggression victimization and perpetration, and a second path via the acceptance of sexual coercion. In a cross-sectional study, 1181 university students in Germany (762 female; 419 male) completed measures of pornography use and perception, risky sexual scripts and sexual behavior, and acceptance of sexual coercion. As predicted, pornography realism was a positive predictor of risky sexual scripts, risky sexual behavior, and acceptance of sexual coercion. Indirect links with sexual aggression victimization and perpetration were found via both pathways. No gender differences in the associations were found. The implications for media literacy interventions addressing the realism of pornography are discussed.

A laboratory study of the effects of men's acute alcohol intoxication, perceptions of women's intoxication, and masculine gender role stress on the perpetration of sexual aggression.

Although research has established an association between alcohol use and sexual assault, few studies have examined how characteristics of the perpetrator may influence sexual aggression depending upon whether alcohol is consumed by the perpetrator and/or the victim. This laboratory-based investigation was designed to disentangle the effects of individual differences in masculine gender role stress (MGRS) and the perpetration of sexual aggression as a function of (1) men's acute alcohol intoxication and (2) whether a woman was consuming alcohol or not. A community sample of 156 men participated in two laboratory sessions, during which they completed a self-report measure of MGRS (Session 1) and a modified version of the sexual imposition paradigm after consuming an alcoholic or non-alcoholic beverage (Session 2). In this paradigm, participants and a male friend were told that an ostensible female participant had consumed or not consumed alcohol. They were also told that she did not wish to view sexual content. Participants were then provided the opportunity to make the female confederate view a sexually or non-sexually explicit film. Sexual aggression was operationalized by selection of the sexually explicit film. A hierarchical logistic regression showed that men higher in MGRS who were intoxicated were (1) more likely than sober men to select the sexually explicit film when the woman was intoxicated and (2) less likely than sober men to select the sexually explicit film when the woman was sober. These findings suggest that the perpetration of sexual aggression is most likely among men with higher MGRS when there is concordance in drinking (i.e., when either the man and woman are both drinking or are both not drinking).

Prevalence of Sexual Aggression Victimization and Perpetration in a German University Student Sample

This study examined the prevalence of sexual aggression perpetration and victimization in a sample of 1,172 students (755 female, 417 male) from four universities in Germany. All participants were asked about both victimization by, and perpetration of, sexual aggression since the age of 14 years, using the Sexual Aggression and Victimization Scale (SAV-S). Prevalence rates were established for different coercive strategies, sexual acts, and victim–perpetrator relationships. Both same-sex and opposite-sex victim–perpetrator constellations were examined. The overall victimization rate was 62.1% for women and 37.5% for men. The overall perpetration rate was 17.7% for men and 9.4% for women. Prevalence rates of both victimization and perpetration were higher for participants who had sexual contacts with both opposite-sex and same-sex partners than for participants with exclusively opposite-sex partners. Significant overlap was found between victim and perpetrator status for men and women as well as for participants with only opposite-sex and both opposite-sex and same-sex partners. A disparity between (higher) victimization and (lower) perpetration reports was found for both men and women, suggesting a general underreporting of perpetration rather than a gendered explanation in terms of social desirability or the perception of consent cues. The findings are placed in the international research literature on the prevalence of sexual aggression before and after the #metoo campaign, and their implications for prevention efforts are discussed.

Psychological and Forensic Challenges Regarding Youth Consumption of Pornography: A Narrative Review

Nowadays, technology has become part of the daily activities of a large part of the population. Many of the activities and development and socialization processes of minors and young people have been transferred to the online world, generating attention and concern from the educational, scientific, and forensic communities. One of the most worrying issues derived from this new online world is the consumption of pornography by teens. The objective of this literature review is to draw attention to the consequences and emotional disturbances derived from the consumption of pornography in young people, as well as the forensic implications of this phenomenon, among which are paraphilias, perpetration, and victimization of sexual assaults, and the development of new forms of online sexual victimization. The main findings suggest that the first contact with pornography starts at the age of 8 years old, with important behavioral and psychological consequences, such as hypersexualization, emotional disturbances, and the perpetuation of gender inequality. Furthermore, pornography consumption by youth has been linked to the exacerbation of paraphilias, an increase in sexual aggression perpetration and victimization, and, finally, it has been linked to an increase in online sexual victimization. Implications and future lines of research are discussed.

Predicting rape events: The influence of intimate partner violence history, condom use resistance, and heavy drinking.

Sexual aggression perpetration is a public health epidemic, and burgeoning research aims to delineate risk factors for individuals who perpetrate completed rape. The current study investigated physical and psychological intimate partner violence (IPV) history, coercive condom use resistance (CUR), and heavy episodic drinking (HED) as prospective risk factors for rape perpetration. Young adult men (N = 430) ages 21-30 completed background measures as well as follow-up assessments regarding rape events perpetrated over the course of 3 months. Negative binomial regression with log link function was utilized to examine whether these risk factors interacted to prospectively predict completed rape. There was a significant interaction between physical IPV and HED predicting completed rape; men with high HED and greater physical IPV histories perpetrated more completed rapes during follow-up than men with low HED at the same level of physical IPV. Moreover, psychological IPV and coercive CUR interacted to predict completed rape such that men with high coercive CUR and greater psychological IPV histories perpetrated more completed rapes throughout the follow-up period than men with low coercive CUR at the same level of psychological IPV. Findings suggest targets for intervention efforts and highlight the need to understand the topography of different forms of aggression perpetration.

Self-Persuasion: An Experimental Evaluation of a Sexual Aggression Preventive Intervention for U.S. College Men.

Grounded in the self-persuasion paradigm (an indirect persuasion approach, which places people in situations that motivate them to change their behavior), this study evaluated a brief, online intervention to reduce sexual aggression perpetration and increase prosocial bystander behaviors among heterosexual male college students (N = 241) in the United States. Students were randomly assigned to three conditions: (a) a self-persuasion intervention, (b) a social norms control condition, and (c) a control condition focusing on sense of belongingness. The self-persuasion intervention integrated three social psychological theoretical perspectives on attitudinal and behavioral change-cognitive dissonance (e.g., creating a personalized video message for incoming male college freshmen to explain the importance of consent in sexual contact), self-affirmation (e.g., reflecting on one's core values and how they are congruent with sexual consent), and personal relevance (e.g., writing about personally relevant reasons to always seek consent when having sexual contact). Participants in the self-persuasion condition reported greater prosocial bystander behaviors (e.g., intervening in situations to prevent sexual aggression) 6 months after the intervention as compared with those in the other two conditions; however, there were no significant difference in the rate of self-reported sexual aggression perpetration across conditions. The positive effect of the self-persuasion intervention on prosocial bystander behaviors was mediated by reduced self-perceived likelihood to commit sexual aggression and moderated by in-group solidarity with other college students. That is, the intervention had the most positive effect on prosocial bystander behaviors among participants with a lower sense of in-group solidarity. These findings are discussed in light of the promise of self-persuasion for future sexual aggression prevention work.