真实盈余管理与R     

代霞 《科技管理研究》2016,(4)

本文以2010-2013年间创业板上市公司的763个样本进行实证分析,讨论真实盈余管理与R  相似文献   

认识拉德克利夫—布朗——以《社会人类学方法》为例     

方明 《蒙自师范高等专科学校学报》2011,(5):111-114

拉德克利夫-布朗是人类学功能学派的代表人物之一。在解读《社会人类学方法》的基础上,本文梳理出布朗为寻求"社会的自然法则"而提倡比较的方法、归纳的方法和共时性方法。此外,提醒关注布朗对"田野工作"的真知卓见与审视对布朗的批评。  相似文献   

Application of the Levenshtein Distance Metric for the Construction of Longitudinal Data Files     

Harold C. Doran  Paul B. Van Wamelen 《Educational Measurement》2010,29(2):13-23

The analysis of longitudinal data in education is becoming more prevalent given the nature of testing systems constructed for No Child Left Behind Act (NCLB). However, constructing the longitudinal data files remains a significant challenge. Students move into new schools, but in many cases the unique identifiers (ID) that should remain constant for each student change. As a result, different students frequently share the same ID, and merging records for an ID that is erroneously assigned to different students clearly becomes problematic. In small data sets, quality assurance of the merge can proceed through human reviews of the data to ensure all merged records are properly joined. However, in data sets with hundreds of thousands of cases, quality assurance via human review is impossible. While the record linkage literature has many applications in other disciplines, the educational measurement literature lacks details of formal protocols that can be used for quality assurance procedures for longitudinal data files. This article presents an empirical quality assurance procedure that may be used to verify the integrity of the merges performed for longitudinal analysis. We also discuss possible extensions that would permit merges to occur even when unique identifiers are not available.  相似文献   

图书馆学五定律及其给我们的启示   总被引：7，自引：0，他引：7  

徐恩元  徐建华 《四川图书馆学报》2005,(5):8-13

概述了阮冈纳赞图书馆学五定律的基本内容及相应的实现五定律的对策、措施或应注意的问题，并分析和指出了其给我国图书馆的一些启示。  相似文献   

Finding and explaining differences: A reply to Gudykunst and Hammer     

Richard L. Wiseman  Hiroko Abe 《Int J Intercult Relat》1984,8(1):11-16

A rejoinder to Gudykunst and Hammer's critique of a recent paper is presented. We argue that their position is based on two mutually exclusive propositions and cannot therefore be credible. We continue to maintain that the evidence on intercultural effectiveness shows both culture-general and culture-specific components.  相似文献   

Differential effects of norm-referenced and self-referenced feedback on performance expectancies,attributions, and motivation     

Wendy McColskey  Mark R. Leary 《Contemporary educational psychology》1985,10(3):275-284

When feedback is provided to students in a norm-referenced manner that compares the individual's performance to that of others, people who perform poorly tend to attribute their failures to lack of ability, expect to perform poorly in the future, and demonstrate decreased motivation on subsequent tasks. The present study examined the hypothesis that the deleterious effects of failure might be attenuated when failure is expressed in self-referenced terms—relative to the individual's known level of ability as assessed by other measures. In this study, subjects received feedback indicating that they did well or poorly on an anagram test, and this feedback was described as either norm-referenced (comparing the individual's performance to that of others) or as self-referenced (comparing performance to other measures of the individual's ability). As predicted, compared to norm-referenced failure, self referenced feedback resulted in higher expectancies regarding future performance and increased attributions to effort. Contrary to expectations, attributions to ability were not affected. The implications of the results for the structure of academic feedback are discussed.  相似文献   

Reflections on R2     

S. J. DAY 《Teaching Statistics》1985,7(1):11-12

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In search of the keyword method/vocabulary comprehension link     

Joel R. Levin  Beverly J. Dretzke  Michael Pressley  Julia E. McGivern 《Contemporary educational psychology》1985,10(3):220-227

Previous research has indicated that the keyword method of vocabulary learning facilitates students' performance not just on simple tests of definition recall, but on comprehension-demanding tasks as well. The present study was conducted to determine whether the “comprehension” finding could be accounted for by keyword subjects' superior definition recall per se. The results generally supported that conclusion: When conditions and subjects within conditions were equated with respect to their initial levels of definition recall, the comprehension advantage of keyword subjects disappeared.  相似文献   

分光光度法直接测定饮料中的柠檬黄和胭脂红     

《雁北师范学院学报》2007,23(3):22-24

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办好教学期刊要素论略     

杨辉祥 《商洛学院学报》2011,25(6):91-94

教学期刊的生存和发展,要求编辑有较高的文化职业素养;编辑团队合作共事,充满活力;刊物内容贴近教学,特色鲜明,凸显传播个性;期刊要有源头活水,重视和参与教学研究,开发和培育作者,塑造着作者,也就打造着刊物。  相似文献