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P-values are useful statistical measures of evidence against a null hypothesis. In contrast to other statistical estimates, however, their sample-to-sample variability is usually not considered or estimated, and therefore not fully appreciated. Via a systematic study of log-scale p-value standard errors, bootstrap prediction bounds, and reproducibility probabilities for future replicate p-values, we show that p-values exhibit surprisingly large variability in typical data situations. In addition to providing context to discussions about the failure of statistical results to replicate, our findings shed light on the relative value of exact p-values vis-a-vis approximate p-values, and indicate that the use of *, **, and *** to denote levels .05, .01, and .001 of statistical significance in subject-matter journals is about the right level of precision for reporting p-values when judged by widely accepted rules for rounding statistical estimates. 相似文献
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This study sought to determine the proportion of adult, male, heterosexual cross‐dressers who acknowledge both gender dysphoria and at least occasional fetishistic response to cross‐dressing. Subjects were 193 outpatients of the gender identity clinic or behavioral sexology department of a psychiatric teaching hospital. Questionnaire items were used to assess subjects' current level of gender dysphoria and their recent history of sexual response to cross‐dressing. Subjects who reported higher levels of gender dysphoria tended to report lower frequencies of sexual arousal with cross‐dressing (r = ‐.56, p < .0001) and lower frequencies of masturbation with cross‐dressing (r = ‐.62, p < .0001). About half of even the most strongly gender dysphoric subjects, however, acknowledged that they still become sexually aroused or masturbate at least occasionally when cross‐dressing. These findings indicate a need for revision in the DSM‐III‐R's diagnostic criteria for transvestism and gender identity disorders, which presuppose that gender dysphoria and fetishistic reactions are mutually exclusive. 相似文献
235.
Madeleine Leonard 《Children & Society》2010,24(1):38-49
The purpose of this paper was to explore teenagers' perception of the concept of 'recreational rioting'. It draws on focus group discussions with 80 Catholic and Protestant teenagers who live in one of the most contested interface areas in Northern Ireland, many of whom have experience of rioting. The majority of children who took part in the research were highly critical of the connotations associated with 'recreational rioting' and their experiences of rioting calls into question the 'recreational' aspects of the practice. While many children were motivated to become involved in rioting because of 'something to do', their participation was imbued with political undertones. 相似文献
236.
Hiromi Taniguchi Leonard D. Thomas 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2011,22(2):335-355
Religiosity has long been known to promote volunteering in the US and elsewhere. Despite the growing body of research examining religious correlates of volunteering, however, few studies have focused on whether and how religious attitudes affect volunteering. With data from the Midlife Development in the United States (MIDUS II), 2004?C2006, we examine the influences of religious attitudes, namely, the religiously based feelings of exclusiveness and inclusiveness, and openness to other religious faiths, on volunteering. We find that while religious exclusiveness significantly promotes volunteering only in religious areas, religious inclusiveness promotes both religious and secular volunteering. Moreover, those who are open to other religious faiths are more likely to engage in both types of volunteer work. Implications of these findings are discussed for future research linking religious attitudes to volunteering. 相似文献
237.
Leonard Baglow 《Australian Social Work》2013,66(3):48-52
A seminar entitled ‘Aged in Society: a Look to the Future’ (organised by Phillip Institute of Technology School of Nursing Centre for Continuing Education, March 1988) is interpreted in a personal way, by an ageing member of society and a worker in aged care. The need to examine our attitudes to old age, retirement, disability and dependence, as well as our relationship patterns, and change them where necessary is outlined. Our health depends partly on ourselves. It is up to us to keep informed on all aged services and to influence their development, as voters, members of organisations, or as professionals working in that field. 相似文献
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Leonard A. Stefanski 《统计学通讯:理论与方法》2013,42(5):1715-1733
This paper discusses a general strategy for reducing measurement-error-induced bias in statistical models. It is assumed that the measurement error is unbiased with a known variance although no other distributional assumptions on the measurement-error are employed, Using a preliminary fit of the model to the observed data, a transformation of the variable measured with error is estimated. The transformation is constructed so that the estimates obtained by refitting the model to the ‘corrected’ data have smaller bias, Whereas the general strategy can be applied in a number of settings, this paper focuses on the problem of covariate measurement error in generalized linear models, Two estimators are derived and their effectiveness at reducing bias is demonstrated in a Monte Carlo study. 相似文献
240.