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The authors studied the relationship between confidence and accuracy in clinical assessments of psychiatric patients' short-term risk of violence. At the time of entry to the hospital, physicians (N = 78) estimated the probability that each of 317 patients would physically attack other people during the first week of psychiatric hospitalization. The clinicians also indicated the degree of confidence they had in their estimates of violence potential. Nurses rated the occurrence of inpatient physical assaults with the Overt Aggression Scale. The results showed that when clinicians had a high degree of confidence, their evaluations of risk of violence were strongly associated with whether or not patients became violent. At moderate levels of confidence, clinicians' risk estimates had a lower, but still substantial relationship with the later occurrence of violence. However, when clinicians had low confidence, their assessments of potential for violence had little relationship to whether or not the patients became violent. The findings suggest that the level of confidence that clinicians have in their evaluations is an important moderator of the predictive validity of their assessments of patients' potential for violence. 相似文献
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Dale Richard Buchanan 《Journal of criminal justice》1985,13(6):561-572
Police student officers' attitudes towards domestic disputes following family-crisis-intervention training are analyzed. A total of 359 student officers from fourteen training classes participated in the study. The most dramatic improvement in attitudes was observed in officers' perceptions of disputants and in their perceptions of domestic disturbance calls. The study also investigated the attitudes of student officers toward organizational policy, training, and community relations. Student officers' attitudes significantly improved in thirty-one of fifty-one items (p < .05). In general, the changes in attitudes demonstrated that the family-crisis-intervention program did affect the attitudes of student officers in the predicted direction of change. Following training, student officers were more likely to view domestic disputes as legitimate police business and more likely to believe that their actions could influence families in crisis and that people in crisis both want, and will benefit from, assistance. It is concluded that crisis-intervention training appears to be responsible for the change in officer attitudes and that family-crisis training should be included in the curriculums of police training academies. 相似文献
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Revolving Roles in Drug-Related Crime: The Cost of Chronic Drug Users as Victims and Perpetrators 总被引:1,自引:0,他引:1
Michael T. French Kathryn E. McCollister Pierre Kébreau Alexandre Dale D. Chitwood Clyde B. McCoy 《Journal of Quantitative Criminology》2004,20(3):217-241
Numerous studies have established a strong connection between the use of illicit drugs and the commission of other illegal activities, including both predatory and property crimes. No study, however, has examined the cost of crimes associated with drug users both as victims and as perpetrators. In the present study, recent data were analyzed from a targeted sample of chronic drug users (CDUs) and a matched sample of non-drug users (NDUs) in Miami-Dade County, Florida, to estimate the incremental cost of crime associated with CDU. Two separate models were employed to estimate (1) the probability of being a victim or a perpetrator of crime and (2) the cost of crime for both situations. The cost measures were transformed to reduce the influence of extreme outliers, and a smearing technique was used to compare the cost of crime for CDUs relative to NDUs. The findings illustrate that criminal activity among CDUs is circular, extensive, and costly. Implications for law enforcement, criminal justice policy, and substance abuse treatment are discussed. 相似文献
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Dipika Sur Joseph Cook Susmita Chatterjee Jacqueline Deen Dale Whittington 《Journal of policy analysis and management》2007,26(1):189-199
We believe a lack of transparency undermines both the credibility of, and interest in, stated choice studies among policy makers. Unlike articles reporting the results of contingent valuation studies, papers in the stated choice literature rarely present simple tabulations of raw response data (that is, a table or graph showing the percentage of respondents agreeing to purchase a good or service, or vote for a proposed management plan as a function of price). We describe an approach for adding “policy” tasks to a standard orthogonal‐in‐attribute‐levels research design that allows the researcher to plot raw responses as a function of changes in only one characteristic of the offered good or service. We demonstrate this approach using data from a stated choice study of private demand for cholera and typhoid vaccines in Kolkata, India, carried out in the summer of 2004. © 2006 by the Association for Public Policy Analysis and Management. 相似文献
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