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211.
Michael J. Camasso Radha Jagannathan Carol Harvey Mark Killingsworth 《Journal of policy analysis and management》2003,22(2):207-223
This paper examines the type of evidence policy analysts have used to identify the presence and magnitude of contamination in welfare reform experiments. Peter Rossi's critique of the New Jersey Family Development Program evaluation motivates the following discussion. In this critique Rossi and others contend that client misperception about experimental control‐group assignment resulted in contamination that negates reported treatment effectiveness. By applying the framework of the Rubin Causal Model (RCM) to isolate “pure” and “impure” experimental and control cases, the actual group assignment and not self‐reported membership is shown to be a more accurate gauge of treatment level and effect. The analysis reveals that the form of contamination Rossi detected leads to underestimates of treatment effects, not their evaporation. While contamination is a legitimate threat in any research design its identification must be based on empirical measures. © 2003 by the Association for Public Policy Analysis and Management. 相似文献
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Harvey Sicherman Author Vitae 《Orbis》2011,55(3):463-471
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Harvey Sicherman 《Orbis》1999,43(4):633
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A proliferation of molecular studies of the forensically significant Calliphoridae in the last decade has seen molecule-based identification of immature and damaged specimens become a routine complement to traditional morphological identification as a preliminary to the accurate estimation of post-mortem intervals (PMI), which depends on the use of species-specific developmental data. Published molecular studies have tended to focus on generating data for geographically localised communities of species of importance, which has limited the consideration of intraspecific variation in species of global distribution. This study used phylogenetic analysis to assess the species status of 27 forensically important calliphorid species based on 1167 base pairs of the COI gene of 119 specimens from 22 countries, and confirmed the utility of the COI gene in identifying most species. The species Lucilia cuprina, Chrysomya megacephala, Ch. saffranea, Ch. albifrontalis and Calliphora stygia were unable to be monophyletically resolved based on these data. Identification of phylogenetically young species will require a faster-evolving molecular marker, but most species could be unambiguously characterised by sampling relatively few conspecific individuals if they were from distant localities. Intraspecific geographical variation was observed within Ch. rufifacies and L. cuprina, and is discussed with reference to unrecognised species. 相似文献
219.
The emphasis of government legislation on money laundering has been based on the assumption that reporting institutions are
able to spot deviant customer behaviour and that implicitly such behaviour is criminal. This paper looks at the drivers for
reporting of suspicious or unusual activity, in particular, focusing on the principle of reputation. It considers the evidence
over bank disclosure within annual published reports with respect to their money laundering compliance activity; particularly
examining whether there was any change in disclosure and hence reputation management reporting by those banks fined by the
regulator for lapses of compliance. An attempt is also made to apply the principles of legitimacy theory to evaluate the association
between money laundering and reputation looking for evidence of a ‘virtuous cycle of compliance’. However, the findings point
to limited public awareness of money laundering and to the adoption of a deficit rather than enhancement model of reputation
management.
相似文献
Jackie HarveyEmail: |
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