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排序方式: 共有133条查询结果,搜索用时 31 毫秒
81.
Deborah Jones Gary Marks Olga Villar-Loubet Stephen M. Weiss Christine O’Daniels Craig B. Borkowf 《心理学和人类性特征杂志》2015,27(3):249-263
ABSTRACT. Objectives: This cross-sectional study examined African American and Hispanic women's (N = 1,509) self-reports of unwanted forced sex and its association with behavioral and mental health outcomes after the event. Methods: Twenty percent of the women had experienced forced sex (1st occurrence at age 15 years or younger for 10%, 1st occurrence at older than 15 years of age for 10%). Results: Regardless of when forced sex 1st occurred, women were more likely to have engaged in unprotected vaginal and anal sex, to have had multiple unprotected sex partners, to have sexually transmitted infections, to have reported binge drinking and illicit drug use, and to exhibit distress and have received mental health counseling. Conclusions: Forced sex may have wide-ranging behavioral and mental health consequences years later. 相似文献
82.
Generalized linear models with random effects and/or serial dependence are commonly used to analyze longitudinal data. However, the computation and interpretation of marginal covariate effects can be difficult. This led Heagerty (1999, 2002) to propose models for longitudinal binary data in which a logistic regression is first used to explain the average marginal response. The model is then completed by introducing a conditional regression that allows for the longitudinal, within‐subject, dependence, either via random effects or regressing on previous responses. In this paper, the authors extend the work of Heagerty to handle multivariate longitudinal binary response data using a triple of regression models that directly model the marginal mean response while taking into account dependence across time and across responses. Markov Chain Monte Carlo methods are used for inference. Data from the Iowa Youth and Families Project are used to illustrate the methods. 相似文献
83.
Cort MA Tull ES Gwebu K Dlamini P Pinkney E Gramby E Cuthbertson S Daniels A Aurubin N Gwebu ET 《The Social Science Journal》2009,46(4):644-655
We focus on the scarcely researched concept of internalized racism (INR), conceptualized as the internalization by blacks of white stereotypes about blacks, to investigate the extent to which it is impacted by education. Samples were drawn from two countries in Southern Africa, Swaziland (N = 308) and Zimbabwe (N = 319). We examined the contrasting socio-political contexts of a history of apartheid in Zimbabwe, and the absence of de jure segregation in Swaziland, the levels of INR, and the relationship of education to INR in both societies. Analysis showed that there was no difference in the levels of INR. Education, our variable of main interest, was negatively related to INR in both societies, and age, and a “sense of helplessness” were positively related to INR also in both societies, although the latter was marginally significant in Swaziland. We discussed the unexpected similarity of INR levels in these societies, and the potential of education to mediate negative psychological effects in both socio-political contexts. 相似文献
84.
Wang C Daniels MJ Scharfstein DO Land S 《Journal of the American Statistical Association》2010,105(492):1333-1346
We consider inference in randomized longitudinal studies with missing data that is generated by skipped clinic visits and loss to follow-up. In this setting, it is well known that full data estimands are not identified unless unverified assumptions are imposed. We assume a non-future dependence model for the drop-out mechanism and partial ignorability for the intermittent missingness. We posit an exponential tilt model that links non-identifiable distributions and distributions identified under partial ignorability. This exponential tilt model is indexed by non-identified parameters, which are assumed to have an informative prior distribution, elicited from subject-matter experts. Under this model, full data estimands are shown to be expressed as functionals of the distribution of the observed data. To avoid the curse of dimensionality, we model the distribution of the observed data using a Bayesian shrinkage model. In a simulation study, we compare our approach to a fully parametric and a fully saturated model for the distribution of the observed data. Our methodology is motivated by, and applied to, data from the Breast Cancer Prevention Trial. 相似文献
85.
This article describes an innovative project designed to more effectively meet the career development needs of inner-city Black youth. The model for this project includes a multi-service approach that integrates many traditional vocational development services and community counseling strategies within a culturally sensitive program. 相似文献
86.
Evaluation of adjustments for partial non-response bias in the US National Immunization Survey 总被引:1,自引:1,他引:0
Philip J. Smith David C. Hoaglin J. N. K. Rao Michael P. Battaglia Danni Daniels 《Journal of the Royal Statistical Society. Series A, (Statistics in Society)》2004,167(1):141-156
Summary. Many health surveys conduct an initial household interview to obtain demographic information and then request permission to obtain detailed information on health outcomes from the respondent's health care providers. A 'complete response' results when both the demographic information and the detailed health outcome data are obtained. A 'partial response' results when the initial interview is complete but, for one reason or another, the detailed health outcome information is not obtained. If 'complete responders' differ from 'partial responders' and the proportion of partial responders in the sample is at least moderately large, statistics that use only data from complete responders may be severely biased. We refer to bias that is attributable to these differences as 'partial non-response' bias. In health surveys it is customary to adjust survey estimates to account for potential differences by employing adjustment cells and weighting to reduce bias from partial response. Before making these adjustments, it is important to ask whether an adjustment is expected to increase or decrease bias from partial non-response. After making these adjustments, an equally important question is 'How well does the method of adjustment work to reduce partial non-response bias?'. The paper describes methods for answering these questions. Data from the US National Immunization Survey are used to illustrate the methods. 相似文献
87.
Qualitative Sociology - 相似文献
88.
Abstract This paper reports an exploratory study of stress, social support and psychological well-being in British chartered accountants, using data from 399 self-report questionnaires. The results suggest that the underlying structure of stress in British accountancy can be explained by three dimensions; quantitative overload stressors, professional/administrative interface stressors and nuisance stressors. The underlying structure of social support for the sample can be represented by three dimensions of help support, social dependability and esteem support. Intensity of quantitative overload stressors, intensity of professional/administrative interface stressors and all three dimensions of support were found to be related to psychological well-being in the sample. Differences between these variables, types of organization and organizational position were examined. The results are discussed with reference to stress management interventions for accountants. Possible generalizations to other professional groups are discussed. 相似文献
89.
The welfare of working mothers is a subject which has captured the attention many organizations and professional people who have examined the implications from their own particular points of view. For example, among Australian studies, Scott (1962) examined the personality development of pre-school children of working mothers, Bryson, et al. (1965), considered the effects on family life, and Nurcombe (1971) made a general assessment of some aspects of the welfare of infants and children under three years of age whose mothers are in full-time employment. The Women's Bureau of the Commonwealth Department of Labour and National Service has published booklets on various related topics under the general heading of “Women in the Workforce” and statements on policies related to the day care of children have been prepared by such bodies as the Australian Pre-school Association, the Australian Council of Social Service, the Queensland Creche and Kindergarten Association, the Victorian Council of Social Service and the Social Planning and Action Committee of the Australian Association of Social Workers. 相似文献
90.