The role of dominant personality traits in multiple perpetrator rape proclivity

Background/Aim Multiple perpetrator sexual assaults (MPSA) often involve more severe forms of sexual violation and result in a host of impairments for the victim. To further investigate the characteristics of MPSA, researchers have taken an interest in personality traits, varying group dynamics, and the role a leader may play. This study examines the possible linkage between dominant personality characteristics and the propensity to engage in multiple perpetrator sexual assault. Method Using anonymous online surveys, university student participants were assessed on The Personality Scale for Dominance and the Multiple Perpetrator Rape Proclivity Scale (M-PRIS). We hypothesized that dominant personality traits would predict M-PRIS proclivity score. Results Of 176 respondents, 84 heterosexual males completed both measures. Dominance scores did not significantly predict total M-PRIS score, F(1,82) = 1.1, p = .296, the Enjoyment subscale score, F(1,82) = .66, p = .420, the Likelihood subscale score, F(1,86) = 1.13, p = .292, or the Arousal subscale score, F(1,82) = 0.66, p = .419. Conclusion In this study, dominance was not associated with a proclivity for multiple perpetrator sexual violence. Other important factors, such as psychopathy or deviant sexual interests, may mediate the relationship between dominant personality traits and the tendency to initiate a multiple perpetrator sexual assault. Future studies should examine alternative relationships in hopes of gaining a clearer picture of individuals who exhibit a proclivity for sexual violence with the aim to inform prevention and practice.

Do sexist jokes increase rape proclivity among males high in hostile sexism? Evidence from two pre-registered direct replications of Thomae & Viki (2013)

Thomae and Viki (2013) reported that increased exposure to sexist humour can increase rape proclivity among males, specifically those who score high on measures of Hostile Sexism. Here we report two pre-registered direct replications (N = 530) of Study 2 from Thomae and Viki (2013) and assess replicability via (i) statistical significance, (ii) Bayes factors, (iii) the small-telescope approach, and (iv) an internal meta-analysis across the original and replication studies. The original results were not supported by any of the approaches. Combining the original study and the replications yielded moderate evidence in support of the null over the alternative hypothesis with a Bayes factor of B = 0.13. In light of the combined evidence, we encourage researchers to exercise caution before claiming that brief exposure to sexist humour increases male’s proclivity towards rape, until further pre-registered and open research demonstrates the effect is reliably reproducible.

Moderating Factors in Culpability Ratings and Rape Proclivity in Stranger and Acquaintance Rape: Validation of Rape Vignettes in a Community Sample

Rape is a serious concern globally. Past research has identified Ambivalent Sexism (AS), Rape Myth Acceptance (RMA), and the victim–perpetrator relationship as key constructs influencing rape blame attributions and rape proclivity. Limitations with methodologies have, however, limited the practical implications of past research, particularly in the context of underpowered samples and a lack of transparency in vignette development and implementation. In the current research, three studies aimed to validate material to be used in research into rape perceptions and to examine the impact of victim–perpetrator relationship, AS, and RMA on victim and perpetrator culpability, and rape proclivity, using an experimental design. On 563 participants, this research developed and validated six rape vignettes which accounted for methodological limitations of past research (Study One) and were found to be believable and realistic by participants; it further found that aggressively sexist attitudes were associated with increased victim culpability and decreased perpetrator culpability (Study Two), and increased rape proclivity (Study Three). Scenarios of a casual acquaintance produced the highest levels of victim culpability and the lowest levels of perpetrator culpability. Victims were ascribed more control than blame, or responsibility. Men reported the highest levels of rape proclivity in scenarios of casual acquaintance, and intimate partner relationships. Contrary to past research, Benevolent Sexism (BS) did not directly impact attributions in rape cases but may maintain and legitimize the attitudes, which do. As some of our findings contradict past research, we suggest that the need for standardized rape vignettes is evident, along with greater transparency and methodological rigor in sexual assault research, as this will improve the practical implications of findings. Reproducible research practices may be useful for this. While limited in diversity, this research has important implications for policy and research practice, particularly in producing validated material that can be reused by future researchers.

Sexist Humor and Sexual Aggression Against Women: When Sexist Men Act According to Their Own Values or Social Pressures

Exposure to sexist humor creates a context in which some men feel comfortable expressing aggressive tendencies toward women (i.e., self-reported rape proclivity). This is in part because this type of humor makes it easier for men who have antagonistic attitudes toward women to express their prejudice without fear of social reprisal. Besides, previous research has demonstrated the influence of motivational variables such as autonomy (initiation or regulation of intentional behavior based on free choice) and control (acting under external pressure) on aggression. We conducted two experiments to explore the hypothetical influence of priming autonomy and control motivations on the relation between sexist humor and the expression of sexually aggressive tendencies toward women. Study 1 ( N = 108) revealed that control-primed men with high (vs. low) scores in hostile sexism reported a higher rape proclivity when exposed to sexist (vs. neutral) humor. These results were partially replicated in Study 2 ( N = 132), assessing the accessibility of aggressive sexual thoughts. This research contributes to our understanding of the influence of sexist humor and motivational orientations in sexist men on the expression of aggressive sexual behaviors directed against women.

Somnophilia: Examining Its Various Forms and Associated Constructs

Somnophilia refers to the interest in having sex with a sleeping person. Using an online sample of 437 participants, the present study provides the first empirical examination of somnophilia, its various forms, and theorized correlates. Participants completed the newly developed Somnophilia Interest and Proclivity Scale, which comprises three subscales (active consensual, passive consensual, and active nonconsensual somnophilia). To test hypotheses about the convergent and divergent validity of different paraphilic interests, participants also completed scales measuring necrophilic, rape-related, and sadistic/masochistic sexual fantasies, rape proclivity, and the need for sexual dominance/submission. Male participants scored higher than females on all scales except the passive subscale. For both males and females, each subscale was associated most strongly with conceptually congruent variables. These results support existing theoretical assumptions about somnophilia, as well as offering newer insights, such as distinguishing between active and passive somnophilia. Limitations and implications for further research are discussed.

Sexist Humor and Rape Proclivity: The Moderating Role of Joke Teller Gender and Severity of Sexual Assault

Three experiments examined the effect of sexist humor on men’s self-reported rape proclivity (RP). Pilot study demonstrated that people differentiate the five rape scenarios of Bohner et al.’s. RP Scale based on the degree of physical violence perpetrated against the victim. Experiment 1 demonstrated that men higher in hostile sexism report greater RP upon exposure to sexist jokes when a woman (vs. a man) delivers them, and that this effect is limited to rape scenarios depicting a moderate versus a high level of physical violence. Experiment 2 further demonstrated that the relationship between hostile sexism and rape proclivity in response to a moderately violent rape scenario after exposure to sexist humor generalizes beyond women in the immediate humor context to women as a whole.

Male Peer Support to Hostile Sexist Attitudes Influences Rape Proclivity

Sexual assault affects a large proportion of women in the world. Although most rapes are committed by one man, the act itself may be influenced by many (e.g., the peer group). Hostile sexism (HS) has repeatedly been associated with men’s rape proclivity, but the influence exerted by the HS of the peer group on rape proclivity has not been investigated. In this study, we explored the impact of perceived male peer support to HS on participants’ rape proclivity. A sample of Spanish undergraduate students from a university in the south of Spain ( N = 134) completed the Ambivalent Sexism Inventory. Immediately afterwards, they received feedback on the supposed sexist responses of a peer group (high vs. low in HS); we kept the benevolent sexism (BS) of the peer group at medium levels. Next, we assessed participants’ rape proclivity using acquaintance rape scenarios. Results showed an interaction between participants’ own levels of HS and information about the HS of the peer group. Men high in HS reported higher rape proclivity in the high-HS peer-group condition than in the low-HS peer-group condition. By contrast, information on the peer group did not affect self-reported rape proclivity of men low in HS. Results also corroborated the relationship between participants’ levels of HS and rape proclivity, and expanded the literature by revealing an unexpected influence of participants’ BS on rape proclivity.