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171.
Ardith Baker Teresa Bittner Christos Makrigeorgis Gloria Johnson Joseph Haefner 《Teaching Statistics》2010,32(3):81-87
Recent evidence indicates that decision makers are more sensitive to potential losses than gains. Loss aversion psychology has led behavioural economists to look beyond expected utility by developing prospect theory. We demonstrate this theory using the Deal or No Deal game show. 相似文献
172.
USING STRUCTURE INFORMATION TO GUIDE DIAGNOSIS 总被引:2,自引:0,他引:2
为了快速得到“模型诊断”中的最优测量点,建立了系统的二值模型;它只包含候选故障元,且它们的因果关系与原系统保持一致,然后,利用结构信息区分候选诊断.这种方法可看成是期望熵法的极值结构特征提取.直接适用于连续或离散系统.这样可以采用“对分法”在O(N2)时间内给出一个优化测量点. 相似文献
173.
骨密度的测定方法及影响因素 总被引:5,自引:0,他引:5
介绍骨密度测量的常用方法,并系统划分影响骨密度的因素。判断骨密度与年龄的关系,为青少年的年龄推断提供依据,得出骨密度随着年龄的增长而出现与年龄相关的骨质量减少。根据测量青少年的骨密度来解释为什么男孩在青春期后期比女孩发育得快;特别对女性进行调查发现,体重与瘦组织和脂肪组织在男女各个部位的骨密度都有一定的相关性;体育锻炼对其骨质量峰值期和衰老下降期的影响及运动负荷与骨质量的关系,发现女性在绝经后期骨质量快速下降。老年退行性骨质量丢失和绝经后骨质量丢失的综合效应以及峰值骨质量低于男性的特点,使得老年妇女骨质疏松发生的危险性高于任何人,雌激素水平低下是长期的剧烈运动训练引起骨密度偏低的主要原因。 相似文献
174.
Cristyne Hébert 《The Educational forum》2017,81(1):68-82
This article calls attention to the overreliance on research about the Performance Assessment for California Teachers (PACT)—often labeled edTPA's predecessor—as justification for the edTPA. The article argues that the distinctions between the assessments are too vast to rely on PACT data to support the edTPA, given the localized nature of PACT and the way in which it is scored. 相似文献
175.
Ian Cantley 《Educational Philosophy and Theory》2017,49(4):405-421
AbstractThe outcomes of educational assessments undoubtedly have real implications for students, teachers, schools and education in the widest sense. Assessment results are, for example, used to award qualifications that determine future educational or vocational pathways of students. The results obtained by students in assessments are also used to gauge individual teacher quality, to hold schools to account for the standards achieved by their students, and to compare international education systems. Given the current high-stakes nature of educational assessment, it is imperative that the measurement practices involved have stable philosophical foundations. However, this article casts doubt on the theoretical underpinnings of contemporary educational measurement models. Aspects of Wittgenstein’s later philosophy and Bohr’s philosophy of quantum theory are used to argue that a quantum theoretical rather than a Newtonian model is appropriate for educational measurement, and the associated implications for the concept of validity are elucidated. Whilst it is acknowledged that the transition to a quantum theoretical framework would not lead to the demise of educational assessment, it is argued that, where practical, current high-stakes assessments should be reformed to become as ‘low-stakes’ as possible. This article also undermines some of the pro high-stakes testing rhetoric that has a tendency to afflict education. 相似文献
176.
我国高新区产业集聚测度方法研究 总被引:1,自引:0,他引:1
基于带有内生技术进步的科布——道格拉斯生产函数,本研究探讨了我国高新区生产要素地理集中及其规模收益变化的测度方法,对高新区及其所在城市1991-2004年面板数据的实证研究结果表明,我国高新区的产业地理集中已初具规模,但要素投入的产出弹性整体呈下降趋势。 相似文献
177.
178.
蒲德祥 《四川师范大学学报(社会科学版)》2011,38(4):125-133
随着人们生活水平的不断提高,幸福研究日益成为学术界关注的一个焦点问题。本文通过对幸福理论研究的梳理,阐述了幸福基础理论的主要观点、幸福的测量、幸福的影响因素,进而指出,明确界定幸福的基础概念、进一步完善量表的开发和测量、进行幸福的系统化理论研究及其对幸福进行动态化探讨是未来研究的趋向。 相似文献
179.
Engineering curricula have expanded in recent decades. In addition to science and technical engineering, they now include several non-technical competencies. This is a trend reinforced by programme accreditation. The authors take the viewpoint that it is important to ensure that graduates have the competencies they will require for their work. The following question is addressed: What are the generic competencies that engineers graduating in Australia require for their work as engineers?
Competencies were identified from a broad range of literature and then rated by 300 established engineers for importance to their jobs. The results indicated that non-technical, attitudinal and technical competencies were perceived to be important. Eleven competency factors were revealed empirically. Profiles of these competency factors among graduates would assist evaluation and improvement of engineering programmes. This is the first quantitative study conducted in Australia that encompassed all engineering disciplines and focused on established engineers rather than recent graduates. 相似文献
180.
桑爱江 《黑龙江教育学院学报》2011,30(7):145-146
通过对"冠词+名词(形容词)"表示类指的特征进行分类研究,深入探讨冠词在名词词组中表达类别功能的作用。冠词的指类特征与其基本属性有着密切的关系,特别是在"the+形容词"结构中,冠词促使形容词名词化并赋予其类别语义特征。 相似文献