Assessing the Effect of Race Bias in Post-traffic Stop Outcomes Using Propensity Scores

   In response to community demands, case settlements, and state laws concerning racial profiling, police departments across the nation are collecting data on traffic stops. While the data collection is rapidly moving forward, there are few if any agreed upon methods for analyzing the data. Much of the attention has been on benchmarks for the race distribution of stops and searches. Little empirical work has advanced our understanding of the influence of race in the post-stop activities of police. The present study proposes a propensity score technique to determine the extent to which race bias affects citation rates, search rates, and the duration of the stop. Adjusting for confounding variables using the propensity score offers an alternative to multivariate regression that is more interpretable, less prone to errors in model assumptions, and ultimately easier to present to stakeholders in policing practices. An analysis of traffic stop data from the City of Oakland, California demonstrates the process, presentation, and interpretation of the results that the methodology produces. Ultimately, the study addresses the extent to which race plays a role in officers’ use of discretion.

Evaluation of the improving access to psychological therapies for offenders programme at HMP Lincoln: a three year prospective cohort study

The mental health needs of prisoners are significant with a high incidence of common mental health problems including anxiety and depression. Extending national initiatives such as the National Health Service Improving Access of Psychological Therapies programme to people in prison offers a valuable opportunity to address these mental health problems and improve continuity of care from prison to the community. This study adopts an observational, prospective cohort design and evaluates an IAPT for offenders service over the first three years of operation within a male Category B prison holding remand/convicted prisoners. The evaluation found large effect sizes for changes in anxiety and depression with clinical recovery being achieved in 55% of depression and 52% of anxiety cases. On average, prisoners were treated in less than five sessions employing a low-intensity cognitive-behavioural approach. The lack of established formal diagnoses and a control group limits the findings.     

IDENTIFYING MECHANISMS BEHIND POLICY INTERVENTIONS VIA CAUSAL MEDIATION ANALYSIS

Causal analysis in program evaluation has primarily focused on the question about whether or not a program, or package of policies, has an impact on the targeted outcome of interest. However, it is often of scientific and practical importance to also explain why such impacts occur. In this paper, we introduce causal mediation analysis, a statistical framework for analyzing causal mechanisms that has become increasingly popular in social and medical sciences in recent years. The framework enables us to show exactly what assumptions are sufficient for identifying causal mediation effects for the mechanisms of interest, derive a general algorithm for estimating such mechanism‐specific effects, and formulate a sensitivity analysis for the violation of those identification assumptions. We also discuss an extension of the framework to analyze causal mechanisms in the presence of treatment noncompliance, a common problem in randomized evaluation studies. The methods are illustrated via applications to two intervention studies on pre‐school classes and job‐training workshops.     

An analysis of data curated from 5 years of identifying human remains

An archive of 5 years of cases involving the identification of human remains was curated, collecting information on: The sample type submitted, the number of STR loci yielding interpretable results, the kinship challenge posed, and the outcome for the case. A total of 129 cases of remains ID were investigated using manual DNA extraction and recovery methods with amplification of STR markers using the Power Plex 21 multiplex STR kit from Promega Corp. In 52 cases, blood spots collected by the ME were provided as sample and in 100% of those cases, probabilities of relatedness to the reference samples was ≥99%. In 77 cases, tissue other than blood was provided as a source of DNA. These other samples were grouped categorically into long bones (femur and tibia; 40 cases), skull bones/teeth (11 cases), other bones (16 cases), and tissue (normally adherent to bone) (10 cases). Reference samples provided for cases included alleged parents or child(ren) of the victim (86 cases), alleged full siblings of the victim (38 cases), or alleged second-order relatives (five cases). The overall success rate in confirming the identity of the source of the remains in these cases was 89.2%. Our results demonstrate that a laboratory can be often successful identifying human remains using methods easily implemented in any DNA typing laboratory.     

Community participation and local government capacity in Vietnam: Conditions for coproduction

With Public Administration Reform in Vietnam comes more local government responsibility for policy making. Building on the results of a multiple case study research on housing and infrastructure upgrading projects in four cities of Vietnam, it has been confirmed that the community participation and local government capacity in urban housing and infrastructure upgrading projects are positively related. The level of community participation in urban housing and infrastructure upgrading projects is influenced by local government capacity, and in turn, it has effects on the outcomes. There are some important aspects for the enhancement of the level of community participation. These are effective leadership, the financial resources aspect, and communication/information exchange. Moreover, based on the patterns of community participation in urban upgrading projects, it has been found that participation is strongly supported by government actors in these four cases, and a process of coproduction between the local government and the affected communities has taken place.     

Child-related leave and women’s labour market outcomes: towards a new paradigm in the European Union?

The current European Union (EU) legislative framework on child-related leave is facilitating an imbalance in the take-up of leave by women over men. There is a consolidated EU right to maternity leave for mothers but there is no parallel EU right to paternity leave for fathers. The EU right to parental leave is for both working mothers and fathers, but its design does not encourage an equal take-up by women and men. The aim of this article is to gain insight into the effects of child-related leave on women’s labour market outcomes. On the one hand, it reviews and analyses economic literature which points to the adverse consequences of leave on women’s earnings, and even on women’s labour market participation when the absences from work are very prolonged. On the other hand, it underlines the new direction followed by the European Commission towards greater equality between men and women at home and at work.     

中药治疗糖尿病足溃疡结局评价的问题与对策

药物的疗效和安全性通过结局指标的报告来体现,因此恰当地选择并报告结局指标是临床研究中应该重视的关键环节.目前中药治疗糖尿病足随机对照试验的文献在结局指标的选择和报告方面存在以下问题:滥用综合性指标评价结局;结局评价指标模糊不清;结局评价指标不分主次;结局评价标准不统一;缺少对不良事件的报告.因此,应明确定义主次结局指标...