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21.
The purpose of this paper is to provide evidence that the debate between quantitative and qualitative is divisive and, hence, counterproductive for advancing the social and behavioral science field. We advocate that all graduate students learn to utilize and to appreciate both quantitative and qualitative research methodologies. As such, students will develop into pragmatist researchers who are able to utilize both quantitative and qualitative techniques when conducting research. We contend that the best way to accomplish this is by eliminating quantitative research methodology and qualitative research methodology courses from curricula and replacing these with research methodology courses at different levels that simultaneously teach both quantitative and qualitative techniques within a mixed methodological framework.An earlier version of this article received the 2003 Southwest Educational Research Association (SERA) Outstanding Paper Award.  相似文献   
22.
Robustness issues in multilevel regression analysis   总被引:8,自引:0,他引:8  
A multilevel problem concerns a population with a hierarchical structure. A sample from such a population can be described as a multistage sample. First, a sample of higher level units is drawn (e.g. schools or organizations), and next a sample of the sub‐units from the available units (e.g. pupils in schools or employees in organizations). In such samples, the individual observations are in general not completely independent. Multilevel analysis software accounts for this dependence and in recent years these programs have been widely accepted. Two problems that occur in the practice of multilevel modeling will be discussed. The first problem is the choice of the sample sizes at the different levels. What are sufficient sample sizes for accurate estimation? The second problem is the normality assumption of the level‐2 error distribution. When one wants to conduct tests of significance, the errors need to be normally distributed. What happens when this is not the case? In this paper, simulation studies are used to answer both questions. With respect to the first question, the results show that a small sample size at level two (meaning a sample of 50 or less) leads to biased estimates of the second‐level standard errors. The answer to the second question is that only the standard errors for the random effects at the second level are highly inaccurate if the distributional assumptions concerning the level‐2 errors are not fulfilled. Robust standard errors turn out to be more reliable than the asymptotic standard errors based on maximum likelihood.  相似文献   
23.
VARMA (vector autoregressive moving average) processes are proposed for modelling cointegrated variables. For this purpose the echelon form is combined with the error correction form. Procedures for estimating the Kronecker indices which characterize the echelon form and for specifying the cointegration rank are discussed. The asymptotic distribution of the coefficient estimators is given. An example based o n US macroeconomic data illustrates the procedure and demonstrates its feasibility in practice.  相似文献   
24.
This paper reports on a study to compare self-reports during an interview with staff who attended a University health centre in Turkey, with the records of visits to the same health centre over the previous 12 months. Design of the study reflects the effects of importance of the event, duration since the event, frequency of the occurrence of the event, measurement scale of the event, and bounded and unbounded recalling. In order to assess the extent of recall error, responses to retrospective questions on health centre visits are compared with administrative records. Statistical models are proposed for short and long term human memory recall error effects on responses.  相似文献   
25.
文章对大型混凝土现浇工程中给水管道预埋应注意的几个问题进行了详细的分析和总结,为推广应用混凝土现浇工程管道同步预埋提供了提高工程质量、加快施工进度的指导方法。  相似文献   
26.
本文从研究方法、热点实务和人才培养三个方面,讨论了我国管理会计发展的现状、面临的 问题和未来发展,目的是为我国研究者的研究提供一些新研究思路和选题、为我国实际工作者组织实务勾 勒一个基本的方向。  相似文献   
27.
目前,一些上市公司利用关联方交易操纵利润、粉饰会计报表,造成会计信息的严重失真,为此,规范关联交易定价政策、逐步减少现有可避免的关联交易、制止新的应避免的关联交易产生十分必要。  相似文献   
28.
管理科学堪称西方文化精华,翻译介绍管理学著作是一件非常有意义的事情。由于翻译介绍的管理学理论和方法极有可能被企业奉为圭臬,翻译必须十分慎重和注重质量。本文通过对一些错误译文的分析,希望引起出版和翻译界对译文质量的重视。  相似文献   
29.
教师应根据女生的生理、心理特征,选用适宜的教学内容、教法,并通过参与到学生的练习中和发挥学生之间的作用,提高女大学生体育学习的兴趣和积极性。  相似文献   
30.
在现代企业制度条件下如何当好企业领导是一个新的课题。本文提出现代企业制度要求有现代企业领导者,而当好现代企业领导者,必须以人才为根本,抓好人力资源的开发和利用;必须努力提高企业领导者的领导水平,同时要强化创新意识,开拓创新实践。  相似文献   
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