11 research outputs found
The Structure and Delivery of Police Use of Force Training: A German Case Study
The current study aims to investigate the current structure and delivery of police recruit training. Using a case study approach, we systematically observed a semester of police training that consisted of 30 h with a specific focus on police use of force training. Field notes and time-on-task data was analysed using an inductive approach. The results revealed, first, a lack of constructive alignment of the training modules and learning tasks within the training settings. Second, an adherence to traditional linear approaches to training resulting in high amounts of augmented instruction and feedback and a one-size-fits all approach to technical and tactical behaviour. Third, a non-efficient use of available training time with low amounts of engagement in representatively designed tasks that stimulated problem-solving processes. Based on these results we suggest that there is a need: (a) for police trainers and curriculum designers to align the objectives, practice structure and delivery of police training with the needs of police officers in the field (e.g. conflict resolution); (b) for police trainers to employ more learner-centred pedagogical approaches that account for individual action capabilities and resources, and allow for high amounts of training time with representatively designed training tasks; and (c) for senior managers of overall police training decision-makers to provide the necessary trainer education, in order to furnish trainers with the knowledge and tools to appropriately plan, deliver and reflect upon their practice in keeping with concept of constructive alignment
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The stability of neuropsychological test performance in a group of parenteral drug users
The stability of neuropsychological performance in a sample of drug abusers was investigatedfor a wide range of neuropsychological tests, using a test-retest paradigm with Idparenteral drug users. The battery administered included tests of general intellectualfunction, abstract reasoning, verbal memory, language, attention, visuospatial ability, set switching, speededperformance, and manipulative dexterity. Stability coefficients were of a moderate to high magnitude for most of the tests and were comparable to coefficients found in other studies of non-drug-users. Two exceptions, however, were the Selective Reminding Test and the Perdue Pegboard. Possible reasons for instability with these two tests are discussed. It is concluded that neuropsychological investigations of drug abusers can yield consistent and reliable data, although further studiesshould employ alternative and/or supplementary measures of verbal memory and motor function
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Serial MRI in HIV Infection With and Without Neurologic Impairment
To assess the relationship of longitudinal brain magnetic resonance imaging (MRI) and infection with human immunodeficiency virus (HIV), a cohort of HIV+ and HIV− gay men and injection drug users (IDU) were evaluated prospectively. Subjects underwent two evaluations including MRI scans, neurologic examinations, neuropsychological assessments and lymphocyte subset determinations one year apart. MRI changes over a one year period were analyzed with respect to serostatus, risk group, CD4 counts, neurological findings and neuropsychological performance. The frequency of MRI changes was no different in subjects with or without HIV infection and no new opportunistic infections or neoplasms were seen. However, among HIV+ subjects with CD4 count < 200 at the time of the initial scan, an increase in white matter hyperintensities was significantly more common. Also among HIV+ subjects, atrophy increased in association with declining CD4 count. Finally, subjects who developed significant neurologic deterioration in one year were much more likely to have increased atrophy. These results suggest that while there are morphological brain changes associated with HIV infection, they are most often seen in association with immunologic or neurologic deterioration
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Gender Differences in HIV-Related Neurological Progression in a Cohort of Injecting Drug Users Followed for 3.5 Years
We evaluated potential gender differences in the development of HIV related neurologic impairment, by matching 38 pairs of HIV positive male and female injecting drug users on their baseline age, education, disease stage and CD4 counts, and following them for 3.5 years. Adjusting for age, education, drug use, history of head injury and baseline CD4 count, more women had sensory abnormalities and symptoms than men at baseline, but the odds of having neurological impairment, particularly extrapyramidal signs and sensory abnormalities were increased over time in men but not in women. Men with ARC or AIDS had more neurological impairment than women in similar stages of illness. This study suggests further investigations of gender differences in HIV disease progression