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Empirical studies that use reported crime data to evaluate policies for reducing crime will understate the true effectiveness of these policies if crime reporting/recording behavior is also affected by the policies. For instance, when the size of the police force increases, changes in the perceived likelihood that a crime will be solved may lead a higher fraction of victimizations to be reported to the police. In this paper, three data sets are employed to measure the magnitude of this reporting bias. While each of these analyses is subject to individual criticisms, all of the approaches yield similar estimates. Reporting bias appears to be present but relatively small in magnitude: each additional officer is associated with an increase of roughly five Index crimes that previously would have gone unreported. Taking reporting bias into account makes the hiring of additional police substantially more attractive from a cost–benefit perspective but cannot explain the frequent inability of past studies to uncover a systematic negative relationship between the size of the police force and crime rates.  相似文献   
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Correspondence     
Negotiation Journal -  相似文献   
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The interpretation of bloodstain patterns at crime scenes has received increased attention in recent years. Important to an understanding of this is knowledge of the fundamentals of blood droplet formation and impact dynamics. A review of the literature reveals that a considerable amount of work has been done with aqueous drop dynamics. Workers in the forensic science area seem to have been unaware of this. In addition, some of the most important and comprehensive early work with blood droplet dynamics seems to have been forgotten. It is not cited in more recent publications dealing with bloodstain pattern interpretation. This literature is reviewed and discussed as well. The present study presents results of experiments with blood droplet dynamics and high-speed photographs of blood droplet impacts on stationary target surfaces. Some longstanding misconceptions of importance to forensic scientists engaged in crime scene reconstruction are discussed.  相似文献   
138.
Background. There have been a number of developments in the assessment of dynamic risk in the criminological literature. The dynamic risk assessment and management system (DRAMS) has been developed to facilitate the measurement of dynamic factors of risk for offenders with intellectual disability. Method. The study was designed to assess the construct validity, reliability and predictive utility of the DRAMS in 23 male forensic patients in a high secure setting. Predictions were made against independently collected incident data. Concurrent validity was assessed against the Ward Anger Rating Scale (WARS). Results. A reformulation of the individual section variables according to convergent and discriminant correlational analysis revealed Cronbach's alpha levels of >.8 for all sections apart from mood (alpha .750) and items retained to facilitate clinical information (alpha ?.017). Two hundred pairs of WARS and DRAMS assessments revealed orderly sectional correlations. The sections of mood, antisocial behaviour, and intolerance/agreeableness predicted incidents with a medium effect size as did total DRAMS score. There were highly significant differences between assessments taken 1 or 2 days prior to an incident and control assessments conducted at least 7 days from an incident. Conclusions. The reformulated DRAMS has good construct and concurrent validity. It appears to be a reliable assessment tool and informs on risk levels relating to stable and acute proximal factors. It appears as an important addition to the utility of risk assessments for this population.  相似文献   
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An older, divorcing couple rarely has assets worth more than their Social Security rights. After a house and pension/retirement plans, Social Security is their largest "asset." Yet, it is rarely considered by lawyers, mediators, or the parties themselves. A key point, often missed, is that the working spouse receives twice as much Social Security as the nonworking spouse. For many retiring women, getting half as much Social Security as their ex-husbands is just one more insult from a sexist society. Although a nonworking husband will get the same half, the problem is largely one affecting older women, who earned less on average while they worked and who usually took time off to be with the children while the children were growing up. This article looks at Social Security regulations that make this so and how to avoid this unjust result.  相似文献   
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Results from a study in Ohio, and replicated in six additionalstates, show public opinion toward state land use regulationto be aggregated around two major attitudes: the Environmentalistsstress the impact of negative developmental externalities andfavor broader review of land use decisions; the Localists areconcerned with accountability and local control of decision-making.An intensive analysis of the Ohio Land Use Work Group revealsthe policy-making elite in basic sympathy with the Environmentalists,but constrained by intra-agency rivalries and apprehensionsabout public reaction. Discussion focuses on the shifting publicconsensus toward greater land use control, and the implicationsfor state policy-making. *Originally read at a meeting of the Midwest Political ScienceAssociation, Chicago, 1975. The authors gratefully acknowledgefinancial assistance from the Academy for Contemporary Problems,Columbus, Ohio, and from the Ohio Office of Budget and Management.Special appreciation is expressed to the Academy's president,Ralph R. Widner, and to Dean Clark and Paul Goesling who, atthe time of the study, were affiliated with OBM. Gratitude alsoto individuals who facilitated the national-regional interviewing:David Gillespie, Brij Khare, Michael Obrey, Michael Shay, JosephThomas, and Hugh Winebrenner.  相似文献   
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