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Although there are several available test statistics to assess the difference of marginal probabilities in clustered matched‐pair binary data, associated confidence intervals (CIs) are not readily available. Herein, the construction of corresponding CIs is proposed, and the performance of each CI is investigated. The results from Monte Carlo simulation study indicate that the proposed CIs perform well in maintaining the nominal coverage probability: for small to medium numbers of clusters, the intracluster correlation coefficient‐adjusted McNemar statistic and its associated Wald or Score CIs are preferred; however, this statistic becomes conservative when the number of clusters is larger so that alternative statistics and their associated CIs are preferred. In practice, a combination of the intracluster correlation coefficient‐adjusted McNemar statistic with an alternative statistic is recommended. To illustrate the practical application, a real clustered matched‐pair collection of data is used to illustrate testing the difference of marginal probabilities and constructing the associated CIs. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
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What is the Word at Logos College? Homosocial ritual or homosexual denial in Don Delillo's End Zone?
Hardin M 《Journal of homosexuality》2000,40(1):31-50
"What Is the Word at Logos College? Homosocial Ritual or Homosexual Denial in Don Delillo's End Zone?" investigates the homoerotic desire that, despite being culturally repressed, periodically surfaces in foothall. Given the highly closeted nature of American foothall, it is necessary to look at the puns, allusions, and interactions between the players to see how Don DeLillo has created a text that subtly exposes the homoerotics of male sport. In order to strengthen the connection between homoeroticism and football, I will show how football's invention and organization in America coincides with the construction of the homosexual subject. Football and other arenas for male-male play become enforced at the same time as desire begins to express itself; thus, football is the logical place in America to look for unresolved (and resolved) male homosexuality, and DeLillo does this skillfully. 相似文献
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Traditionally, single sampling plans have provided but two possible lot disposition policies, either to (1) accept or reject and screen, or to (2) accept or reject and scrap. This is particularly true of statistical designs. Economically based plans, however, provide a framework wherein several lot disposition policies may be invoked in accordance with estimated lot quality. This paper illustrates how such designs may be realized. 相似文献
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This paper describes an approach to joint consideration of strategic planning problems between Health Authorities and Local Authorities. It is currently being pilot tested in the UK by two Area Health Authorities and their corresponding County Councils. The approach is most effective in planning the provision of health and social services for periods between three and ten years ahead and has been particularly designed for planning the non-acute services. These are the services for which joint planning between the health and social services is most important. Depending on local needs and planning priorities the approach may be used for one or more ‘client groups’ (the Elderly, Mentally Ill, Mentally Handicapped, Physically Handicapped etc.). In the pilot applications the approach is being used in planning for the Elderly client group only. The model now used relies on very simple assumptions, arithmetic calculations, and a heuristic optimisation algorithm, in place of a previous mathematical programming model originally aimed at national planning needs and then adapted to local planning. The revised model has achieved these simplifications, while extending the power of the model to fit local needs, by separating out different parts of the problem corresponding to different stages in the planning process, and developing techniques appropriate to each. In a companion paper2 in this issue authors from the participating Authorities put their views on the pilot applications of the approach. 相似文献
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The zero-inflated negative binomial (ZINB) model is used to account for commonly occurring overdispersion detected in data that are initially analyzed under the zero-inflated Poisson (ZIP) model. Tests for overdispersion (Wald test, likelihood ratio test [LRT], and score test) based on ZINB model for use in ZIP regression models have been developed. Due to similarity to the ZINB model, we consider the zero-inflated generalized Poisson (ZIGP) model as an alternate model for overdispersed zero-inflated count data. The score test has an advantage over the LRT and the Wald test in that the score test only requires that the parameter of interest be estimated under the null hypothesis. This paper proposes score tests for overdispersion based on the ZIGP model and illustrates that the derived score statistics are exactly the same as the score statistics under the ZINB model. A simulation study indicates the proposed score statistics are preferred to other tests for higher empirical power. In practice, based on the approximate mean–variance relationship in the data, the ZINB or ZIGP model can be considered, and a formal score test based on asymptotic standard normal distribution can be employed for assessing overdispersion in the ZIP model. We provide an example to illustrate the procedures for data analysis. 相似文献
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