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101.
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103.
Roger J. Owenα 《统计学通讯:理论与方法》2013,42(5):1035-1052
Interest centres on a group of statisticians , each supplied with the same n sample datapoint sandmaking formal Bayesian inference with a common likelihood function but differing prior knowledge and utility functions. Definitions are proposed which quantify, in a commensurable way, the inference processes of “accuracy”, “confidence” and “consensus” for the case of hypothesis inference with a fixed sample size n. The general significance of comparing the three quantifiers is considered. As n increases the asymptotic behaviour of the quantifiers is evaluated and it is found that the three rates of convergence are of the same order as a function of n. The results are interpreted and some of their implications are discussed. 相似文献
104.
A Monte Carlo simulation is used to study the performance of hypothesis tests for regression coefficients when least absolute value regression methods are used. In small samples, the results of the simulation suggest that using the bootstrap method to compute standard errors will provide improved test performance 相似文献
105.
Roger L. Berger 《The American statistician》2013,67(4):314-318
In this article the problem of comparing two independent binomial populations is considered. It is shown that the test based on the confidence interval p value of Berger and Boos often is uniformly more powerful than the standard unconditional test. This test also requires less computational time. 相似文献
106.
Roger B. Nelsen 《The American statistician》2013,67(4):343-345
The R language, a freely available environment for statistical computing and graphics is widely used in many fields. This “expert-friendly” system has a powerful command language and programming environment, combined with an active user community. We discuss how R is ideal as a platform to support experimentation in mathematical statistics, both at the undergraduate and graduate levels. Using a series of case studies and activities, we describe how R can be used in a mathematical statistics course as a toolbox for experimentation. Examples include the calculation of a running average, maximization of a nonlinear function, resampling of a statistic, simple Bayesian modeling, sampling from multivariate normal, and estimation of power. These activities, often requiring only a few dozen lines of code, offer students the opportunity to explore statistical concepts and experiment. In addition, they provide an introduction to the framework and idioms available in this rich environment. 相似文献
107.
While preference-based explanations play an increasing role in economics and sociology, the accurate measurement of social preferences deserves more attention. Most laboratory experiments measure social preferences by studying the division of “a cake that nobody had to bake” (Güth and Kliemt, 2003). This article reports results of the first ultimatum game experiment with bargaining over waiting time. The experiment was created to avoid effects of windfall gains. In contrast to donated money, time is not endowed by the experimenter and implies a natural loss to subjects. This allows for a better measurement of the inherent conflict in the ultimatum game. We implemented three anonymity conditions; one baseline condition, one condition with anonymity among subjects and one double-blind condition in which the experimenter did not know the division of waiting time. While we expected to observe less other-regarding behavior in ultimatum game bargaining over time, our experimental results rather confirm previous ultimatum game experiments, in which people bargained over money. The modal offer was half of the waiting time and only one offer was rejected. Interestingly, anonymity did not change the results significantly. In conclusion, our experiment confirms other-regarding behavior in the ultimatum game. 相似文献
108.
Roger Waldinger 《Journal of ethnic and migration studies》2017,43(1):3-17
The transnational perspective emerged in the early 1990s as an alternative to assimilation theory, gaining instant and wide influence. But curiously, the intellectual confrontation between these two perspectives was averted, as scholars concluded that persistent homeland engagement was fully compatible with hostland integration. This paper seeks to pick up that challenge. I demonstrate how a cross-border perspective, encompassing places of origin and destination and the flows of people, ideas, and resources between them, highlights the ways in which population movements across state borders create tensions on both receiving and sending sides. In the process, I will show how looking across borders paradoxically highlights the centrality of the territorial boundary, as it simultaneously underscores the importance of dissimilation – the social and political separation of immigrants from the people they have left behind – yet also the ways in which non-citizen status and foreign origins simultaneously hamper immigrants’ ability to gain acceptance in receiving states while furnishing sending states with opportunities to reconnect with nationals abroad. 相似文献
109.
Wayne H. Denton Dianne L. Reynolds Brant R. Burleson Roger T. Anderson 《Journal of marital and family therapy》1999,25(3):383-392
This study tested the hypothesis that married psychiatric outpatients would have lower total health services expenditures than divorced or separated patients. Chart review of the 471 individuals attending an academic medical center outpatient psychiatric clinic during 1994 identified 131 married, 40 separated, and 93 divorced patients. Separated men had significantly higher average total charges ($16,890) than married ($5,279) or divorced ($5,539) men by one-way ANOVA (p < .05). The nonparametric Mann-Whitney test also showed that separated men had higher charges than married or divorced men. There were no differences between marital status groups for women. 相似文献
110.
The Analysis of Verbal Behavior - This research describes a method that initially establishes a mand repertoire as the first component in producing echoic and tact repertoires in young children... 相似文献