Gender effects in eyewitness accounts of a violent crime

Abstract

This research examined two aspects of gender effects in eyewitness accounts: whether there are gender differences in memory for a violent crime and how gender of perpetrator/victim affect witnesses' evaluations of perpetrator/victim behavior. Eighty male and 84 female university students saw a film showing a simulated manslaughter with either a male or female perpetrator stabbing a male or female victim. A female advantage was found in overall memory of the crime, and both a male perpetrator and a male victim were assigned more culpability than their female counterparts. It is suggested that females may have more elaborated categories for person information than males, which should facilitate female accuracy in person memory. Alternatively, the present findings may reflect a more general female advantage in episodic memory performance. Stereotype assimilation is suggested to account for the differential evaluations of a male and female perpetrator/victim.     

Perceptions of Legitimacy: The Sex of the Legal Messenger and Reactions to Sexual Harassment Training

Research shows that exposure to sexual harassment policy sometimes activates traditional gender stereotypes. This article examines whether the sex of the legal messenger moderates reactions to the enforcement of sexual harassment laws. We employ a 2 × 2 experimental design in which we measure the effect of a sexual harassment policy intervention on male participants’ gender beliefs. The design varies whether the person communicating the policy information is male or female. We find that female policy trainers activate implicit gender stereotypes, but explicit gender egalitarian beliefs. Other than improving men's perceptions of women's considerateness, the policy has little effect on beliefs in the conditions with a male trainer. These results suggest that the effect of law on social change is contingent on characteristics of the legal messengers. Findings contribute to our understanding of gender inequality and legitimacy processes and have practical implications for implementing effective policy.     

How reliable are eyewitness memories? Effects of retention interval,violence of act,and gender stereotypes on observers' judgments of their own memory regarding witnessed act and perpetrator

An experiment was conducted to evaluate the effects of (i) stimulus person's gender, (ii) type of act (neutral or violent), and (iii) retention interval (short or long) on observers' memory of a stimulus person. Participants were presented with one of two acts: neutral (walking around in a store) or violent (robbing a store). The retention interval was 10 minutes or one–three weeks. The dependent variables were questionnaire items concerning the participants' memory of (1) the stimulus person's appearance and (2) the event, and (3) rating scales where the participants were asked to evaluate the stimulus person's aggressiveness, insensitivity, and other personality traits as well as characteristics of the act. Results showed that when the act was violent, and a long retention interval was used, a female, but not a male, stimulus person was evaluated less harshly than with a short retention interval (enhancement of gender stereotype); a stimulus person was seen as behaving in a more masculine way when performing a violent rather than a neutral act; witnessing the violent act resulted in better self-rated memory of the stimulus person; and with increasing retention interval, the violent act was seen as less negative and the neutral act as more negative (regression toward the mean).     

A cognitive-based indicator of deviant sexual interest: Concurrent validation of the Stroop task

ABSTRACT

One of the strongest predictors of sexual recidivism is sexual deviance [Hanson, R. K., & Bussière, M. T. (1998). Predicting relapse: A meta-analysis of sexual offender recidivism studies. Journal of Consulting and Clinical Psychology, 66, 348–362. doi:10.1037/0022-006X.66.2.348]. Phallometric testing, the most commonly used method of assessing sexual deviance, has elicited methodological and ethical criticisms, while self-report is vulnerable to social desirability and poor insight. To overcome these limitations, researchers have utilised cognitive measures, including a modified Stroop task, to measure deviant sexual interests among sex offenders using victim selection as a comparison measure. However, the results have been inconclusive. The current study explored the validity of the modified Stroop task as a measure of deviant sexual interest among a non-offending sample of 570 females and 223 male participants, using self-report as the comparison measure. The results indicated a significant gender difference in concurrent validity; there was a significant relationship between self-reported deviance and deviant word Stroop performance for male but not for female respondents, suggesting the Stroop is a viable option for assessing sexual deviance among males. Implications of these findings are discussed relative to sexual recidivism risk assessment.     

The relative validity of psychopathy versus risk/needs‐based assessments in the prediction of adolescent offending behaviour

Purpose . The predictive validity of the psychopathy checklist‐youth version (PCL:YV) and Youth Level of Service/Case Management Inventory (YLS/CMI) for juvenile offenders were compared to examine whether a broad needs–risk tool predicted violence better than a focused individual assessment of psychopathy. Methods . 94 adolescents from residential and secure units were interviewed and assessed using the PCL:YV and YLS/CMI. Total scores were retrospectively applied to staff‐recorded incidents of violence, total number of charges and convictions and formally recorded assaults. The predictive accuracy of each tool was assessed using correlational and receiver operator characteristic analyses. Results . The PCL:YV was a better predictor of staff‐recorded violence than the YLS/CMI; both instruments were similar in their ability to predict total number of charges and convictions and assaults. When subdivided by gender, the correlations for predicting staff recorded violence in male participants were significantly higher than for female participants for both test instruments. Both instruments were broadly equivalent in their association with assaults and charges and convictions by gender. Conclusion . The PCL:YV is a better predictor of recorded violence than the YLS/CMI, but for charges and convictions and assaults, the YLS/CMI and PCL:YV were comparable for UK adolescent offenders. When recalculated to exclude the likelihood of predictor–criterion overlap, the results were the same. These findings are discussed in relation to the value of using risk–needs assessment instruments as compared with scales with a more psychopathological and personality focus.     

Validation of a male-specific, 12-locus fluorescent short tandem repeat (STR) multiplex

Y chromosome-specific short tandem repeat (Y-STR) analysis has become another widely accepted tool for human identification. The PowerPlex Y System is a fluorescent multiplex that includes the 12 loci: DYS19, DYS385a/b, DYS389I/II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438 and DYS439. This panel of markers incorporates the 9-locus European minimal haplotype (EMH) loci recommended by the International Y-STR User Group and the 11-locus set recommended by the Scientific Working Group on DNA Analysis Methods (SWGDAM). Described here are inter-laboratory results from 17 developmental validation studies of the PowerPlex Y System and include the following results: (a) samples distributed between laboratories and commercial standards produced expected and reproducible haplotypes; (b) use of common amplification and detection instruments were successfully demonstrated; (c) full profiles were obtained with standard 30 and 32 cycle amplification protocols and cycle number (24-28 cycles) could be modified to match different substrates (such as direct amplification of FTA paper); (d) complete profiles were observed with reaction volumes from 6.25 to 50 microL; (e) minimal impact was observed with variation of enzyme concentration; (f) full haplotypes were observed with 0.5-2x primer concentrations; however, relative yield between loci varied with concentration; (g) reduction of magnesium to 1mM (1.5 mM standard) resulted in minimal amplification, while only partial loss of yield was observed with 1.25 mM magnesium; (h) decreasing the annealing temperature by 2-4 degrees C did not generate artifacts or locus dropout and most laboratories observed full amplification with the annealing temperature increased by 2 degrees C and significant locus dropout with a 4 degrees C increase in annealing temperature; (i) amplification of individual loci with primers used in the multiplex produced the same alleles as observed with the multiplex amplification; (j) all laboratories observed full amplification with >or = 125 pg of male template with partial and/or complete profiles observed using 30-62.5 pg of DNA; (k) analysis of < or = 500 ng of female DNA did not yield amplification products; (l) the minor male component of a male/female mixture was observed with < or =1200-fold excess female DNA with the majority of alleles still observed with 10,000-fold excess female; (m) male/male mixtures produced full profiles from the minor contributor with 10-20-fold excess of the major contributor; (n) average stutter for each locus; (o) precision of sizing were determined; (p) human-specificity studies displayed amplification products only with some primate samples; and (q) reanalysis of 102 non-probative casework samples from 65 cases produced results consistent with original findings and in some instances additional identification of a minor male contributor to a male/female mixture was obtained. In general, the PowerPlex Y System was shown to have the sensitivity, specificity and reliability required for forensic DNA analysis.     

Validation of male-specific, 12-locus fluorescent short tandem repeat (STR) multiplex

Y chromosome-specific short tandem repeat (Y-STR) analysis has become another widely accepted tool for human identification. The PowerPlex Y System is a fluorescent multiplex that includes the 12 loci: DYS19, DYS385a/b, DYS389I/II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438 and DYS439. This panel of markers incorporates the 9-locus European minimal haplotype (EMH) loci recommended by the International Y-STR User Group and the 11-locus set recommended by the Scientific Working Group on DNA Analysis Methods (SWGDAM). Described here are inter-laboratory results from 17 developmental validation studies of the PowerPlex Y System and include the following results: (a) samples distributed between laboratories and commercial standards produced expected and reproducible haplotypes; (b) use of common amplification and detection instruments were successfully demonstrated; (c) full profiles were obtained with standard 30 and 32 cycle amplification protocols and cycle number (24-28 cycles) could be modified to match different substrates (such as direct amplification of FTA paper); (d) complete profiles were observed with reaction volumes from 6.25 to 50 microL; (e) minimal impact was observed with variation of enzyme concentration; (f) full haplotypes were observed with 0.5-2x primer concentrations; however, relative yield between loci varied with concentration; (g) reduction of magnesium to 1mM (1.5 mM standard) resulted in minimal amplification, while only partial loss of yield was observed with 1.25 mM magnesium; (h) decreasing the annealing temperature by 2-4 degrees C did not generate artifacts or locus dropout and most laboratories observed full amplification with the annealing temperature increased by 2 degrees C and significant locus dropout with a 4 degrees C increase in annealing temperature; (i) amplification of individual loci with primers used in the multiplex produced the same alleles as observed with the multiplex amplification; (j) all laboratories observed full amplification with >or = 125 pg of male template with partial and/or complete profiles observed using 30-62.5 pg of DNA; (k) analysis of < or = 500 ng of female DNA did not yield amplification products; (l) the minor male component of a male/female mixture was observed with < or =1200-fold excess female DNA with the majority of alleles still observed with 10,000-fold excess female; (m) male/male mixtures produced full profiles from the minor contributor with 10-20-fold excess of the major contributor; (n) average stutter for each locus; (o) precision of sizing were determined; (p) human-specificity studies displayed amplification products only with some primate samples; and (q) reanalysis of 102 non-probative casework samples from 65 cases produced results consistent with original findings and in some instances additional identification of a minor male contributor to a male/female mixture was obtained. In general, the PowerPlex Y System was shown to have the sensitivity, specificity and reliability required for forensic DNA analysis.     

Participant gender,stalking myth acceptance,and gender role stereotyping in perceptions of intimate partner stalking: a structural equation modeling approach

The present research used a mock juror experiment (N = 360) to assess two primary goals: (1) to examine the direct and indirect effects of participant gender, stalking myth acceptance, and gender role stereotyping on guilt ratings in a stalking trial; and (2) to examine the role of perceived victim fear and distress, and defendant intended danger on perceptions of a stalking trial. Using structural equation modeling, we found an indirect effect of participant gender, and both direct and indirect effects of stalking myth acceptance and gender role stereotyping on guilt ratings. Men and participants who endorsed more traditional gender role stereotypes were associated with adherence to stalking myth acceptance beliefs. Endorsement of particular stalking myth acceptance beliefs offers a partial explanation for why women and men differed on perceptions of the defendant's intent to cause danger and the victim's perceived fear and distress. Results provide insight into the efficacy of current anti-stalking legislation that relies on a juror's capacity to evaluate an ‘objective’ interpretation (i.e., ‘reasonable person’) standard of fear for intimate partner stalking.     

Effects of genetic and environmental explanations of psychopathy and gender on perceptions of criminal behaviors

Genetic/biological evidence is increasingly introduced into courtrooms but findings regarding its impact are mixed. This study integrates research on psychopathy and the use of genetic evidence in legal contexts by considering how information on genetic causal accounts of psychopathy affect perceptions of culpability, recidivism, amenability to treatment, and sentencing severity. Perpetrator gender was examined as a moderator. Two-hundred thirty-eight undergraduates read a hypothetical violent crime vignette and mock expert testimony regarding psychopathy. The testimony included a diagnosis only, or a diagnosis plus genetic or environmental explanations of the etiology of psychopathy. Results indicated that a genetic account of psychopathy was not clearly perceived as aggravating or mitigating such that participants were more lenient in their perceptions of culpability yet more punitive in their sentencing recommendations when perpetrators were described to have genetically-caused psychopathy. An environmental account of psychopathy was mitigating but only for sentencing severity. In addition, although participants were more lenient in sentencing male and female perpetrators when provided with an environmental cause of psychopathy, participants judged male perpetrators most harshly when provided with a genetic cause of psychopathy. Implications of the relations between etiology and gender in legal decision-making are discussed.     

Two Types of Justice Reasoning About Good Fortune and Misfortune: A Replication and Beyond

While research into justice reasoning has progressed extensively, the findings and implications have been mainly limited to Western cultures. This study investigated the relationship between immanent and ultimate justice reasoning about others’ misfortune and good fortune in Japanese participants. The effects of goal focus and religiosity, which previously have been found to foster justice reasoning, were also tested. Participants were randomly assigned to one condition of a 2 (goal focus: long term or short term) × 2 (target person’s moral value: respected or thief) × 2 (type of luck: misfortune or good fortune) design. For immanent justice reasoning, the results revealed that a “bad” person’s misfortune was attributed to their past misdeeds, while a “good” person’s good fortune was attributed to their past good deeds. Regarding ultimate justice reasoning, it was found that a good person’s misfortune was connected more to future compensation than their good fortune, whereas a bad person’s misfortune was not reasoned about using ultimate justice. There was no significant effect of religiosity or goal focus on justice reasoning, which is inconsistent with the findings of previous studies. The necessity of directly examining cultural differences is discussed in relation to extending and strengthening the theory of justice reasoning.     

Judgments of culpability in a filicide scenario

Previous research has indicated that potential jurors are likely to use personal biases, such as those based on gender and ethnicity, in their judgments of culpability of criminal defendants in addition to, or instead of, the facts of the crime. The present paper seeks to extend this literature to the crime of filicide; to examine whether male defendants are judged more harshly than female defendants, as is the case for domestic violence and sexual abuse. 214 participants were provided with a scenario of filicide in which the gender of the perpetrator, the gender of the child, and the family's social class were randomly assigned. Participants were asked to rate the culpability of the defendant in the case. Results indicated that, unlike for other violent crimes, participants did not use gender or social class biases in their judgments of criminal culpability.     

Gender Bias in Attributions of Responsibility for Abuse

The bulk of previous research investigating attributions of responsibility in victimization scenarios have portrayed the assailant as male and the victim as female. The present study varied gender of the participant, gender of the assailant, and gender of the victim in order to examine gender bias in attributions of responsibility in abuse scenarios. Male and female participants were presented with scenarios depicting an abusive interaction between two males, two females, or a male and a female character and then made judgements of responsibility either with or without the narratives present. The results indicated that attributions made by females were biased against male victims of a male assailant when judging actions of the assailant. Attributions made by females and, to a lesser degree, attributions made by males were biased against the victim when the assailant and the participant were of the same gender and attributions of assailants' actions were made without the narrative present. In the analysis of attributions of actions of the victim, males attributed more responsibility to male than female victims. It is concluded that gender of all parties may be an important consideration when judging responsibility in victimization scenarios.     

Memory Ability is Associated With Disagreement About the Most Recent Conflict in Polysubstance Abusing Couples

There is strong evidence that men and women do not agree about the occurrence of intimate partner violence (IPV). However, few studies to date have attempted to test explanatory models of violence concordance. One possible mechanism underlying disagreement is cognitive impairment, specifically, memory dysfunction. The principal goal of this study is to test whether memory ability and overall cognitive functioning is related to disagreement about the most recent occurrence of IPV within the dyad. Data were collected from both partners of cohabiting or married couples. The male partners were polysubstance abusers within their first year of abstinence. Results indicate that the men and womens memory ability, problem solving, disinhibition, and verbal ability are significantly related to disagreement about the most recent IPV episode. Thus, cognitive ability, particularly memory ability, of the participants should be considered when assessing the accuracy of measuring IPV among individuals diagnosed with polysubstance abuse. Other implications are discussed.1Portions of this paper were presented at the 128th annual meeting of the American Public Health Association (2000).     

Detecting Lies in Children and Adults

In this study, observers' abilities to detect lies in children and adults were examined. Adult participants observed videotaped interviews of both children and adults either lying or telling the truth about having been touched by a male research assistant. As hypothesized, observers detected children's lies more accurately than adults' lies; however, adults' truthful statements were detected more accurately than were children's. Further analyses revealed that observers were biased toward judging adults' but not children's statements as truthful. Finally, consistent with the notion that there are stable individual differences in the ability to detect lies, observers who were highly accurate in detecting children's lies were similarly accurate in detecting adults' lies. Implications of these findings for understanding lie-detection accuracy are discussed, as are potential applications to the forensic context.     

私法中理性人标准之构建

他人内心世界的无法直接获知性,决定了个案裁判中理性人标准的不可或缺.司法实践中,需要运用理性人标准来完成相应的评价工作.理性人标准的运用包括三个阶段:理性人建构、场景重构、透过认知图式得出结论.个案中,通过设想一个具有特定知识结构和能力水准之人,在具体的场景下会形成什么样的认识,来完成对行为人的评价任务.理性人的内部结构主要包括知识结构、认知能力和行动能力,理性人的具体化即表现为理性人的知识结构和能力水准的具体确定.理性人的具体化、场景的重构,均需在价值指引下进行.对此,认为理性人标准系为单一价值服务的观点不可取.理性人标准所要实现的价值,必须结合其所要解决的问题领域具体地加以确定,不同领域中理性人标准所要实现的价值也会不同.价值实现的基本途径是,将价值取向作为确定理性人能力水平和具体知识状况的标准,并指引场景的重构.理性人标准在私法中有着非常广泛的适用空间,并可扩展到公法领域.     

Respect response to Dixon et al. (2012) ‘Perpetrator programmes for partner violence: Are they based on ideology or evidence?’

Purpose. This article is a commentary on Dixon, Archer, & Graham‐Kevan's (2012) critique of the Respect position statement on gender, which concluded by calling for abandoning either Respect or the Respect accreditation system. Methods. The article starts by providing some factual information about Respect and about the accreditation system mentioned in Dixon et al. It then picks up on five specific aspects of the discussion: research notions, prevalence, homicide, the relevance of gender to work on intimate partner violence, and our work to support male victims. Results. Dixon et al. critique one document in order to call for the abandonment of a system of accreditation which is not connected to that document. Dixon et al. ignored other relevant research (such as that on partner homicide) and practice evidence that contradicts their assertions. This includes ignoring the existence of Respect's work with male victims, including running the male victims helpline. Conclusions. Respect work is informed by knowledge and experience from research and practice. There is substantial evidence from research to support the position statement on gender. The accreditation standard and system of accreditation was established before the position statement was written and is not included. Respect provides valuable services for male victims and for male and female perpetrators.     

Do Jurors “Know” What Isn’t So About Child Witnesses?

Are expert witnesses needed in child sexual abuse cases to educate jurors about children’s memory, suggestibility, and reactions to abuse, or do jurors already know what such experts could tell them? To cast light on this question, we surveyed jurors and jury-eligible college students and compared their beliefs with what is known via scientific research regarding children’s memory and ability to testify, reactions to interrogation, and reactions to sexual abuse. We also asked participants to infer results of four widely cited studies of children’s suggestibility. Participants’ beliefs were consistent with findings from research on some issues (e.g., that children can be led to claim that false events occurred) but diverged from the scientific consensus on other issues (e.g., whether children can remember painful events in infancy). Similarly, participants sometimes overestimated and sometimes underestimated the level of suggestibility observed in empirical studies. Individual differences in accuracy were related to participants’ gender, education and ethnicity, and there was considerable disagreement among participants on many questions. Implications of findings for the admissibility of expert testimony in child abuse cases are discussed.     

On Mimicry and the Psychology of the Belief in a Just World: Imitating the Behaviors of Others Reduces the Blaming of Innocent Victims

Innocent victims of crime are often blamed for what happened to them. In this article, we examine the hypothesis that victim blaming can be significantly reduced when people mimic the behavior of the victim or even a person unrelated to the crime. Participants watched a person on a video after which we assessed the extent of their spontaneous mimicry reactions (Study 1) or participants were instructed to mimic or not to mimic the movements of this person (Study 2). Then, they were informed about a rape and criminal assault and judged the degree to which they thought the victims were responsible for the crime. One of the crimes happened to the same person as the person they previously did or did not mimic. The other crime happened to a person unrelated to the mimicry situation. Results of both studies revealed that previously mimicking the victim or an unrelated person reduced the degree to which victims were being blamed.     

Does Ambivalent Sexism Influence Verdicts for Heterosexual and Homosexual Defendants in a Self-Defense Case?

The current research examined the role of defendant and participant sex, presence or absence of expert testimony of the “battered person syndrome”, and sexual orientation of the defendant on perceptions of guilt in a self-defense case. The role of sexism in judgments of culpability was also examined. A sample of 442 participants read a self-defense case scenario and responded to questions pertaining to verdict, defendant culpability, legal element ratings, and sexist attitudes. Results revealed a four-way interaction, showing female participants prescribed the lowest guilt ratings to heterosexual female and homosexual male defendants who received expert testimony of the battered person syndrome. When heterosexual male defendants received expert testimony, ratings of guilt significantly increased. A multiple regression was conducted to determine whether legal and extra-legal factors predicted defendant culpability. Sexist attitudes (benevolent sexism towards men and women) and certain legal elements were predictive of defendant culpability. Limitations and implications are discussed. Study findings were presented in a poster at the annual meeting of the American Psychology-Law Society (APLS), Jacksonville, Florida (March, 2008).     

How pedophilic men think about adult-child sex: effects of child gender and physical maturity

To date, very little research has tackled whether pedophilic men’s attitude towards adult–child sex depends on characteristics of the adult or the child involved in such acts. This study examines the effect of the child’s gender (male vs. female) and physical maturity (pre-pubescent vs. early pubescent) on the moral evaluation of apparently noncoercive adult–child sex in a 2?×?2 factorial online vignette experiment. One hundred eighty-three English-speaking pedophilic men rated their agreement with moral arguments on the Immoral Sex Scale, as well as whether they believed this behavior to be typical for a child. The results revealed considerable inter-individual differences, with about one third showing restrictive moral attitudes. Contrary to our expectations, gender and physical maturity neither affected the perceived morality of the sexual act, nor beliefs about the representativeness of the child’s behavior. However, when controlling for confounds, pedophilic men believed that boys were more likely to willingly engage in adult–child sex. Furthermore, participants with stronger liberal attitudes were found to be more likely to defend the sexual act, as were participants with a preferential interest in pre-pubescents. There was no link between attitudes towards adult–child sex and sexual offending, replicating the non-associations reported in previous community surveys.