Metric forensic anthropology decisions: Reliability and biasability of sectioning-point-based sex estimates

Subjective decisions make human cognitive processes more susceptible to bias and error. Specifically, research indicates that additional context biases forensic anthropologists’ morphological analyses. To address whether metric analyses are also subject to bias, we conducted a pilot study in which 52 experienced osteologists measured a difficult-to-classify human femur, with or without additional contextual information. Using a metric sectioning-point sex-estimation method, participants provided a sex estimate for individual skeletal element(s) and, when given multiple elements, the combined skeletal assemblage. Control group participants (n = 24) measured only the femur. In addition to the femur, bias group participants (n = 28) either measured a female humerus and viewed a female-biasing photograph (n = 14) or measured a male humerus and viewed a male-biasing photograph (n = 14). We explored whether the experts in the different groups would differ in: (1) femoral measurements; (2) femoral sex-estimation conclusions; and (3) final sex-estimation conclusions for the skeletal assemblage. Although the femoral measurements and femoral sex estimates were comparable across groups, the overall sex estimates in the female-biased group were impacted by contextual information—differing from both the control and male-biased groups (p < 0.001). Our results demonstrate that cognitive bias can occur even in metric sex-estimation conclusions. Specifically, this occurred when the metric data and single-element sex estimates were synthesized into an overall estimate. Thus, our results suggest that metric methods are most vulnerable to bias when data are synthesized into an overall conclusion, highlighting the need for bias countermeasures and comprehensive statistical frameworks for synthesizing metric data to mitigate the effects of cognitive bias.     

Leading and recognizing public value

This article examines the relationship between leadership and public value, which is particularly challenging in a context of explicit contest and conflict. The theoretical framework is illustrated through a case study of policing rural crime. The study reveals that the police worked with multiple and competing publics rather than a single homogeneous public, and that part of their leadership role was to create and convene a public space in which different voices and divergent views could be expressed. The study notes that research needs to pay attention to the loss and displacement of public value, not solely its creation and recognition. The need to convene multiple publics required the police to lead, as part of a leadership constellation, and with political astuteness. The findings have wider relevance for other public services, and for studies of leadership and public value at the intersection between the state and civil society.     

Evaluating a new computer-based system for face recall

The Computer-Aided Design Centre has developed a new face recall system which enables a witness to construct the image of a suspect on a television screen. The system currently uses the Photofit library and method of construction. Likenesses of target faces produced by subjects (n=36) using the new system were compared to conventional Photofits produced by a second group of subjects (n=36) of the same targets. There was no difference on any of the three measures employed in the assessed quality of the likenesses produced by Photofit and the CADC System. Both systems tended to produce more recognizable composites when construction was carried out in the presence of the target compared to its absence. Composites made from memory on the initial trial were marginally better with the CADC System than with Photofit. While both systems showed low absolute accuracy, they enjoyed a measure of success in transmitting a likeness of a facial type. It is concluded that while the CADC system shows promise, psychological constraints upon witnesses' powers of recall may place limits on the absolute accuracy achievable with any system of face reconstruction.These experiments were financed by grant No. POL/73 1675/24/3 from the Police Scientific Development Branch of the U.K. Home Office. Points of view expressed in this article are solely those of the authors and do not necessarily reflect the opinions or positions of the funding body. Our gratitude and thanks are due to Tony Kitson and Clive Holloway for their many hours spent developing and operating the CADC system; Jean Shepherd for her skills as a Photofit operator; the Computer-Aided Design Centre; and the MRC Applied Psychology Unit, Cambridge for facilities and subjects.     

Interpersonal Sensitivity, Romantic Stress, and the Prediction of Depression: A Study of Inner-City, Minority Adolescent Girls

The role of interpersonal sensitivity in the relation between romantic stress and depression was examined in 55 adolescent girls from an inner-city high school. Depression, interpersonal sensitivity, and chronic and episodic romantic stress were measured at two time points, 6 months apart. Interpersonal sensitivity was found to moderate the longitudinal relation between romantic stress (both chronic and episodic) and depression. In contrast, interpersonal sensitivity did not potentiate depressive responses to non-romantic interpersonal stress, suggesting particular importance of stress in the romantic domain for adolescent girls. Results indicate that girls' sensitivities to romantic relationship stress should be specifically addressed in depression prevention and intervention programs.Received her PhD from the University of Southern California. Research interests include the influence of romantic relationship factors, such as romantic stress and dating violence, on the development of depression during adolescence.Received her PhD from the University of California, Los Angeles. Research interests include the interplay between adolescent depression, personality disorder symptoms, and interpersonal variables including adjustment in friendships and romantic relationships.Research interests include cognitive and interpersonal factors in adolescent depression.     

A Strategy to Prevent Losses in Local Government Investment Pools

In the first half of the 1990s, some local government investment pools (LGIPs) suffered losses from derivatives investments. Although the losses came from derivatives, the actual cause of the losses was the violation of public-fund prudent investment practices. This article provides a strategy to prevent future losses for LGIPs' participants by looking at the pattern of return on investment of the pools. Our proposal is that rates of return on state pools that co-move with market rates are generally an indication of adherence to prudent investment practices. We demonstrate the viability of this proposal by using co-integration methodology. The implication is that if rates of return on a state pool do not co-move with market rates, they may indicate the violation of prudent investment practices.     

Regulating genetically modified crops and foods in Canada and the United Kingdom: Democratizing risk regulation

Abstract: This article examines the alternate use of models of representative, functional and citizen‐centred participatory democracy in the formulation of policies to regulate the risks of genetically modified crops and foods in the United Kingdom and Canada. It demonstrates that representative, functional and participatory democracy have all played a role in the United Kingdom; functional democracy has been ascendant in Canada, with representative democracy playing a secondary role. These cross‐national differences derive from the greater imperative for regulatory legitimacy in the U.K., and the Canadian pre‐occupation with regulatory effectiveness. The result is a more transparent U.K. regulatory framework that provides representation of a broader range of public values and concerns than in Canada. Sommaire: Cet article examine les différentes utilisations de modèles de démocratie représentative, fonctionnelle et axée sur les citoyens dans la formulation de politiques destinées à réglementer les risques associés aux cultures et aliments génétiquement modifiés au Royaume‐Uni et au Canada. Il démontre que les démocraties représentatives, fonctionnelles et participatives ont toutes joué un rôle au Royaume‐Uni; la démocratie fonctionnelle a dominé au Canada, tandis que la démocratie représentative y a joué un rôle secondaire. Ces différences transnationales proviennent du plus grand impératif de légitimité de la réglementation au R.‐U., et de la préoccupation canadienne de l'efficacité de la réglementation. Le résultat est un cadre de réglementation plus transparent au R.‐U. qui représente un plus vaste éventail de valeurs et de préoccupations publiques qu'au Canada.