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921.
922.
Reports from academic and media sources assert that many young people substitute non-vaginal sexual activities for vaginal intercourse in order to maintain what could be called “technical virginity.” Explanations for technical virginity, however, are based on weak empirical evidence and considerable speculation. Using a sample of 15–19-year-olds from Cycle 6 of the National Survey of Family Growth, we examine technical virginity and its motivations. The results suggest that religious adolescents are less likely than less-religious ones to opt for non-vaginal sex over total abstinence. Abstinence pledgers who are virgins are neither more nor less likely than nonpledgers who are virgins to substitute non-vaginal sex for intercourse. Moreover, religion and morality are actually the weakest motivators of sexual substitution among adolescents who have not had vaginal sex. Preserving technical virginity is instead more common among virgins who are driven by a desire to avoid potential life-altering consequences, like pregnancy and sexually transmitted diseases. 相似文献
923.
Properties of Bayes Factors Based on Test Statistics 总被引:1,自引:0,他引:1
VALEN E. JOHNSON 《Scandinavian Journal of Statistics》2008,35(2):354-368
Abstract. This article examines the consistency, interpretation and application of Bayes factors constructed from standard test statistics. Primary conclusions are that Bayes factors based on multinomial and normal test statistics are consistent for suitable choices of the hyperparameters used to specify alternative hypotheses, and that such constructions can be extended to obtain consistent Bayes factors based on likelihood ratio statistics. A connection between Bayes factors based on likelihood ratio statistics and the Bayesian information criterion is exposed, as is a connection between Bayes factors based on F statistics and parametric Bayes factors based on normal-inverse gamma models. Similarly, Bayes factors based on chi-squared statistics for multinomial data are shown to provide accurate approximations to Bayes factors based on multinomial/Dirichlet models. An illustration of how the simple form of these Bayes factors can be exploited to generate easily interpretable summaries of the experimental 'weight of evidence' is provided. 相似文献
924.
Mary E. Pharis Ph.D. ABPP Ann Eisler MSSW 《Child and Adolescent Social Work Journal》1990,7(6):461-474
This paper informs clinicians about the nature of childhood meatotomies, and presents two cases which suggest that the presence of a meatotomy in the developmental history of male clients should alert clinicians to the potential significance of particular body damage fears and body integrity issues in the client. 相似文献
925.
926.
In this multiple regression model, self-efficacy beliefs are the best predictor of career indecision, and outcome expectations are the best predictor of exploration intentions. When indecision was entered as a predictor, it also was a significant predictor of exploration intentions—students who were less decided were also more likely to plan career exploration. Career efficacy and outcome expectations relate significantly more strongly within the group of college men than within the group of college women. Implications for social cognitive career theory and practice are discussed. 相似文献
927.
928.
THE SOCIAL MANAGEMENT OF AMBITION 总被引:2,自引:0,他引:2
Katherine E. McClelland 《The Sociological quarterly》1990,31(2):225-251
This study of "the social management of ambition' (Hopper 1968) analyzes the changes in occupational expectations that occur among a group of ambitious high school seniors during the seven years after graduation. The predictions of a socialization and of a social reproduction model of the process of expectations change are compared using data from the National Longitudinal Study of the High School Class of 1972. Loglinear analysis is used to estimate a model, with a focus on the roles played by race, gender, social origins, and marriage. Less than one-fifth of the original sample remained "on track' toward achieving their original goals, most often members of already advantaged groups (whites and those from upper-middle-class homes). Married women were among the "cumulatively disadvantaged,' unlike their single peers. Marriage in particular had very different consequences for members of different social groups. 相似文献
929.
Cities as environments 总被引:4,自引:3,他引:1
930.
This paper addresses crisis communication shortcomings of oil companies working in the Nigerian delta region. The anticipatory model of crisis communication is blended with the public relations relational perspective to demonstrate how oil companies have responded to crises in the delta region in a manner contrary to what would be consistent with these perspectives. The result has been persistent turmoil in the region and significant distrust of the organizations. 相似文献