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Previous research shows that expert testimony on eyewitness memory influences mock-juror judgments. We examined the extent to which opposing expert testimony mitigates the impact of defense-only expert testimony. Participants (N = 497) viewed a video-taped trial involving an eyewitness identification and individually rendered verdicts and evaluated the evidence and the experts. We manipulated the Foils (unbiased vs. biased) and Instructions (unbiased vs. biased) of the lineup and Expert Testimony (no expert vs. defense-only expert vs. opposing experts). Expert testimony did not significantly influence juror judgments, but the opposing expert testimony diminished the credibility of the defense expert in the eyes of the jurors. Results point to the need for further research on conditions that qualify the impact of expert testimony. 相似文献
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Two studies examined unconscious racial stereotypes of decision makers in the juvenile justice system. Police officers (Experiment 1) and juvenile probation officers (Experiment 2) were subliminally exposed to words related to the category Black or to words neutral with respect to race. In a presumably unrelated task, officers read 2 vignettes about a hypothetical adolescent who allegedly committed either a property crime (shoplifting from a convenience store) or an interpersonal crime (assaulting a peer). The race of the offender was left unstated and the scenarios were ambiguous about the causes of the crime. Respondents rated the hypothetical offender on a number of traits (e.g., hostility and immaturity) and made judgments about culpability, expected recidivism, and deserved punishment. They also completed a self-report measure of conscious attitudes about race. As hypothesized, officers in the racial prime condition reported more negative trait ratings, greater culpability, and expected recidivism, and they endorsed harsher punishment than did officers in the neutral condition. The effects of the racial primes were not moderated by consciously held attitudes about African Americans. The implications of the findings for racial disparity in the juvenile justice system and for changing unconscious stereotypes were discussed. 相似文献
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Perry PJ Kutscher EC Lund BC Yates WR Holman TL Demers L 《Journal of forensic sciences》2003,48(3):646-651
Supraphysiologic doses of testosterone are associated with increased aggression that is hypothesized to be a function of testosterone serum concentrations, mood, and personality. The study attempted to characterize this relationship among weightlifters who were users (n = 10) and nonusers (n = 18) of anabolic steroids. Participants were interviewed using the Modified Mania Rating Scale and Hamilton Rating Scale for Depression to assess mood, the Buss-Durkee Hostility Inventory (BDHI) and Point Subtraction Aggression Paradigm (PSAP) to assess aggression, and the Personality Disorder Questionnaire (PDQ-R) to assess personality. Blood samples were obtained for the determination of total, free, and weakly bound testosterone. Comparisons of continuous variables between testosterone users and non-users were performed with a parametric (unpaired t-test) or non-parametric (Mann-Whitney) test where appropriate. Correlations with testosterone were examined separately for testosterone users and non-users, using Spearman rank correlation. The subjective (BDHI) and objective (PSAP) assessments of aggression found that supranormal testosterone concentrations were associated with increased aggression. However, the PDQ-R results suggest that this finding was confounded by the personality disorder profile of the steroid users, because steroid users demonstrated Cluster B personality disorder traits for antisocial, borderline, and histrionic personality disorder. 相似文献
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Brian K. Payne 《Journal of criminal justice》2008,36(2):190
Domestic violence is a multifaceted problem that requires various agencies to work together to serve victims. Among other agencies that are involved in this collaborative effort, criminal justice officials must work with social services workers to ensure that cases are handled effectively. At the root of this collaborative effort, it is natural to question whether various parties have the knowledge needed to effectively respond to specific cases of domestic violence. In this study, attention was given to whether social workers possessed enough knowledge about various aspects of domestic violence, including information required to process domestic violence cases in the criminal justice system. In all, 186 social services worker supervisors in the Commonwealth of Virginia were asked to rate the level of knowledge they believed social services workers had regarding specific domestic violence topics with the level of knowledge workers they believed social workers needed regarding each domestic violence topic. Findings suggested that social services workers might have more problems dealing with the interpersonal nature of domestic violence cases than they do with the legal issues. At the same time, the supervisors suggested the workers knew less about specific legal options than they needed to know. Based on this, the authors suggest changes in training for all human services workers, including criminal justice officials and social workers. 相似文献