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Sylvia Richardson Laurent Leblond Isabelle Jaussent Peter J. Green 《Journal of the Royal Statistical Society. Series A, (Statistics in Society)》2002,165(3):549-566
Summary. The paper focuses on a Bayesian treatment of measurement error problems and on the question of the specification of the prior distribution of the unknown covariates. It presents a flexible semiparametric model for this distribution based on a mixture of normal distributions with an unknown number of components. Implementation of this prior model as part of a full Bayesian analysis of measurement error problems is described in classical set-ups that are encountered in epidemiological studies: logistic regression between unknown covariates and outcome, with a normal or log-normal error model and a validation group. The feasibility of this combined model is tested and its performance is demonstrated in a simulation study that includes an assessment of the influence of misspecification of the prior distribution of the unknown covariates and a comparison with the semiparametric maximum likelihood method of Roeder, Carroll and Lindsay. Finally, the methodology is illustrated on a data set on coronary heart disease and cholesterol levels in blood. 相似文献
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The effects of a group therapy program for teenage girls reporting child sexual abuse were evaluated by means of a pretest/ post-test design with a control group. The psycho-educational intervention consisted of an average of 20 weekly two-hour meetings. Results of the repeated analyses of variance (ANOVA) revealed a significant improvement in youth participating in the therapy when compared with the control group on measures of post-traumatic stress, internalizing and externalizing behavior problems, coping strategies, relationship with the mother, and sense of empowerment. The findings suggest that the group therapy offered by the Centre d'Intervention en Abus Sexuels pour la Famille (CIASF) was effective in reducing symptoms for sexually abused teenagers. 相似文献
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Speech and conversational hand gestures were recorded during interviews of 23 younger (M = 21 years) and 19 older adults (M = 70 years). Three kinds of questions were used in order to activate either visual images, motor images, or no mental image (abstract topics). On average, the rate of gesture production did not differ in younger and older adults, but it was significantly influenced by imagery conditions. Gesture production was higher in the motor than in the visual imagery condition, and lowest in the abstract condition. A significant interaction between age and imagery conditions influenced the proportion of representational gestures, which were relatively less frequent in older adults, especially in the visual imagery condition. Content analysis of verbal responses showed that imagery values did not differ in younger and older adults, but that concrete words were less frequent in responses to abstract questions than in the two other conditions. The implications of these results concerning the mechanisms of gesture production and the age-related changes in conversational behavior are discussed. 相似文献
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Isabelle Gouarné 《Sociologie du Travail》2012,54(3):356-374
This in-depth biographical study of Georges Friedmann's itinerary during the period between the two World wars draws from private records and the Communist movement's archives. It highlights this sociologist's pivotal role between the Communist world and academic circles in France. In the 1930s, Friedmann helped to legitimate Marxism in the French social sciences, even among Durkheimians who had proven resistant to Karl Marx's and Friedrich Engels's ideas since the end of the 19th century. Friedmann's political and intellectual stance would, however, become untenable in the late 1930s given the closing of the Communist world. 相似文献
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Danielle R. Bouchard Lisa Soucy Martin Sénéchal Isabelle J. Dionne 《Journal of women & aging》2013,25(1):34-46
The aim of this study was to determine if objective and self-reported measures of physical capacity are two equivalent methods to detect changes following an intervention in obese older women. 36 obese women aged between 55 and 75 years participated in a 3-month study with the aim of improving physical capacity by caloric restriction and/or resistance training. Physical capacity was measured objectively with 10 different tests and self-reported with the SF-36 physical functioning score (SF-36 PF score). Then the performance-to-objective tests were computed using quartiles to provide a baseline global physical capacity score. The mean percentage of change of the 10 tests as well as the SF-36 PF score were also calculated after the study. Body composition was measured by dual-energy X-ray (DXA) absorptiometry. The baseline global physical capacity score and the SF-36 PF score were significantly correlated at baseline (r = 0.43; P < 0.01). Eight out of the 10 objective tests of physical capacity improved after the intervention, while no improvement was observed for the SF-36 PF score. On average, percentage of change in physical capacity was 4.1 ± 5.9% for the SF-36 PF score and 11.1 ± 2.9% for the objective measures. However, no significant correlation was observed between percentage of changes between the two approaches after the intervention (r = 0.32; P = 0.07). Based on these results, the method used to quantify physical capacity after an intervention may have major implications on the outcomes. The methods used should be carefully analyzed in regard to the objective of the study. 相似文献
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The rise in access to complex consumer credit arrangements has taken place against a backdrop of a call for increased individual responsibility. Consumers are required to behave in a way which recognizes both their rights and responsibilities. But how much responsibility should they be expected to shoulder in critical areas of complex choice? Students represent a particular group of novice, sometimes vulnerable and often targeted consumers, who may display limited financial capability and responsibility. In addition to arguments for a more nuanced understanding of individual responsibility in different environments, the role of commercial agents and their marketing practices, which can have major implications for social policy, should also be considered. From the perspective of both students and relevant agencies and organizations, this article examines the nature, role and limitations of individual responsibility in managing credit and debt. While the social and economic system confers rights on lenders, their responsibility in marketing remains limited. It is argued that a framework for more responsible marketing of credit is a critical element of social policy acting as a bridge between individual responsibility and regulation. Qualitative research is used to illustrate the argument for marketing's social responsibility from the point of view of students entering credit arrangements to meet short‐term needs but with long‐term implications. 相似文献
70.
Veronique Giasson Isabelle Daigneault Martine Hébert 《Journal of child sexual abuse》2013,22(2):160-178
This study assesses whether the global psychological adjustment score on the family drawing, derived with a new scoring method, can predict the presence of internalized and externalized behavior problems among sexually abused children. A family drawing was completed by 78 sexually abused children, and three questionnaires were administered to the nonoffending parent. The results indicate that a poorer global psychological adjustment score on the family drawing is associated with a higher probability of clinical thresholds for internalized and externalized behavior problems in children who have been sexually abused, even when controlling for parents’ psychological distress, child's age, number of stressful events experienced by the child, and type of sexual abuse. 相似文献