Examining the Construct Validity of the Original and Revised JBS: A Cross-Validation of Sample and Method

Factor analysis is a statistical technique that can provide an understanding of construct validity. Previous research examining the factor structure of the Juror Bias Scale (JBS) has uncovered problems in the scale's assessment of the constructs of probability of commission (PC) and reasonable doubt (RD). We here reevaluate the scale's constructs to better our understanding of the pretrial biases involved in the juror decision-making process. Importantly, previous findings have been limited to college student samples and trial material that has involved rape evidence. This study examines the construct validity of the JBS in a sample of 617 jury-eligible adults drawn from the community, and the predictive validity of the JBS is examined across 3 distinct trial scenarios. The results parallel earlier findings, indicating that although RD is a tenable and useful construct affecting juror decision-making, PC may be a less relevant pretrial bias. We therefore suggest that future research emphasize alternative constructs, such as confidence and cynicism in the criminal justice system.     

Terrorism: The relevance of the rational choice model

Terrorism in general, and suicidal terrorism in particular, is popularly seen as “irrational,” but many economists and political scientists argue otherwise. This paper distinguishes three different senses of irrationality: unresponsiveness to incentives, deviation from narrow self-interest, and failure of rational expectations. It concludes that an intermediate position on the rationality of terrorism is appropriate. The typical terrorist sympathizer deviates only slightly from homo economicus. But active terrorists arguably stray from narrow self-interest and rational expectations, and suicidal terrorists probably violate both. Deterrence remains a viable anti-terrorism strategy, but deviations from rational expectations increase the potential of persuasion and appeasement.     

Criminal justice and ethical ideology: an exploration of a loyalty-truthfulness dilemma

The notion of loyalty is well established in the criminological literature pertaining to ethics, ethical decision making, and ethical and ideological orientations. The present research addresses the topic of ethics and loyalty in an attempt to address three research questions germane to these areas within criminal justice and criminology. Using two samples equivalent in characteristics other than academic major, this research examines: (1) what impact gender, college major, and the ethical perspective of the observer and the nature of the actor’s action have upon the observer’s attitude toward the action (specific act of deception/truth); (2) what impact gender, college major, and the ethical perspective of the observer and the nature of the actor’s action have upon the observer’s perception of the social attractiveness of the deceiver; and (3) what impact gender, college major, the ethical perspective of the observer, and the nature of the actor’s action have upon the observer’s perception of the task attractiveness of the deceiver. Using a vignette design in this exploratory research, attempts are made to shed light on the impact of gender, major (criminal justice v. others), and ethical orientation on perceptions of an actor confronted with an ethical dilemma of loyalty versus disloyalty involving deception.     

A potential metallographic technique for the investigation of pipe bombings

This study was conducted in an attempt to develop a metallographic method for the investigation of pipe bombings. Three common pipe materials, ASTM A53 steel, AISI 304L stainless steel, and 6061-T6 aluminum, were shock-loaded using five high explosives and three propellants. The explosives used were ANFO, Composition C4, C6 detasheet, nitroglycerine-based dynamite, and flake TNT. The propellants used were FFFFg black powder. Red Dot smokeless powder, and Turbo Fuel A. The post-blast microstructure, hardness, and, in the case of 304L, transformed martensite content were examined for each test. The damage done to the microstructure was found to increase with increasing detonation velocity of the explosives and increase in pressure generated by the shock-metal interaction. Material hardness and, in the case of 304L, martensite content showed a sharp increase followed by a plateau as the shock pressure and detonation velocity increased.     

Use of subpopulation data in Australian forensic DNA casework

DNA profiling evidence presented in court should be accompanied by a reliable estimate of its evidential weight. In calculating such statistics, allele frequencies from commonly employed autosomal microsatellite loci are required. These allele frequencies should be collected at a level that appropriately represents the genetic diversity that exists in the population. Typically this occurs at broadly defined bio-geographic categories, such as Caucasian or Asian. Datasets are commonly administered at the jurisdictional level. This paper focuses on Australian jurisdictions and assesses whether this current practice is appropriate for Aboriginal Australian and Caucasian populations alike. In keeping with other studies we observe negligible differences between Caucasian populations within Australia when segregated geographically. However segregation of Aboriginal Australian population data along contemporary State and Territory lines appears to mask the diversity that exists within this subpopulation. For this reason datasets collated along more traditional lines may be more appropriate, particularly to distinguish the most genetically differentiated populations residing in the north of the continent.     

The Politics of Palliative Care and the Ethical Boundaries of Medicine: Gonzales v. Oregon as a Cautionary Tale

The U.S. Supreme Court's 6-decision in Gonzales v. Oregon is the latest defeat for the Bush administration in its sustained attack on Oregon's physician-assisted suicide law. Both the majority opinion and the major dissent in Oregon provide an opportunity to assess the dangers inherent in allowing a political agenda that emphasizes the sanctity of life and minimizes professional ethical obligations to overshadow quality patient care at the end of life.     

Assessing policy capacity in Canada's public services: Perspectives of deputy and assistant deputy ministers

Abstract: The state of policy capacity within Canada's various levels of government has for some time been the subject of discussion both within the public services themselves and among the academic research community. Drawing on the results of a 2006 survey of deputy and assistant deputy ministers working in Canada's federal, ten provincial and three territorial governments, this article presents assessments made by the most senior leadership. The survey results show that ninety per cent of deputy ministers and assistant deputy ministers agree that policy capacity has changed but that the change is not uni‐directional. Both improvements and decline in policy capacity were observed, although assessments of decline were somewhat more pronounced. Moreover, improvements in policy capacity were found to be associated with a reduced focus on direct service delivery, a greater concern with long‐term planning, and the presence of a political leadership interested in innovation. Conversely, declining policy capacity was found to be linked to centralization of power, the loss of institutional memory, and “churning” within the ranks of the executive leadership. Additionally, level of government was also observed to be linked with change in policy capacity, with provincial deputies reflecting more negatively on policy capacity decline in their government than deputies at other levels.     

The Global Foreign Exchange Market: An Interpretation of the Bank for International Settlements' Survey of Foreign Exchange and Derivatives Market Activity, 2007

Markets for foreign exchange derivatives are turning over $US 5.5 trillion per day and they are having a critical economic and social impact. But they are little understood in the international relations and international political economy (IPE) literature. This paper introduces the key themes of derivative markets and reports on the results of the most recent Bank for International Settlements' triennial survey of global foreign exchange and derivative markets. As well as reporting the enormous scale of growth of these markets, the paper analyses the trends, especially regarding the declining role of the US dollar and the changing roles of different sorts of financial institutions in global financial markets. Finally, it explores what the data indicate about whether these markets can be characterised as being driven by “speculation”.