关于教育测量的要素分析

教育测量是指对教育现象的测量。教育测量的基本手段是存在失真范围的数量化分析。其数量化的语言是效度、信度等。效度分为效标效度与内容效度等,信度是表明测量可靠性的数量指标。     

The Importance of Professional Training for Test Writers

The importance of language testing is noticed by more and more people.But the quality of testing,or say,the level of test writers,has been ignored for a long time.This article intends to talk about the importance of professional training for test writ- ers,in order to arouse people＇s attention to the quality of test designers.     

Assessment of Interjudge Reliability in the Open-Ended Questions Coding Process

In the process of coding open-ended questions, the evaluation of interjudge reliability is a critical issue. In this paper, using real data, the behavior of three coefficients of reliability among coders, Cohen’s K, Krippendorff’s α and Perreault and Leigh’s I _r are patterned, in terms of the number of judges involved and the categories of answer defined. The outcome underlines the importance of both variables in the valuations of interjudge reliability, as well as the higher adequacy of Perreault and Leigh’s I _r and Krippendorff’s α for marketing and opinion research.     

关联交易信息的核心质量 --层次结构及实现途径

通过对关联交易的组织理性和社会成本进行简要的经济学分析，从节约社会成本的角度，借助FASB“财务会计信息质量的层次结构模型”，构筑了一个关联交易信息的核心质量层次结构，同时，从我国有关关联交易会计规范颁布和变迁的角度，分析现有关联交易信息质量的实现途径及不足，并提出相关改进建议。     

论会计信息的相关性与可靠性

会计信息的可靠性和相关性是构成会计信息质量特征的两个重要方面,它们存在着相辅相成、此消彼长的关系,本文从相关性和可靠性的内涵和外延入手分析,详细阐述了两者的对立面,并就如何协调两者的关系提出自己的观点.     

机械零件刚度的模糊可靠性设计方法

介绍了机械零件变形分布参数的确定和刚度隶属函数的选择方法，导出了零件刚度模糊可靠度的计算公式，并给出了应用实例。     

会计国际化背景下的我国会计信息质量特征研究

会计信息质量特征是财务会计概念框架的重要组成部分。本文采用规范分析方法对西方国家的会计信息质量特征进行了国际比较，并结合实证研究结论对影响我国财务会计信息质量特征的因素进行了现状分析。最后指出在当前特殊的环境下确立我国财务会计信息质量特征体系，应该同时兼顾国际协调与中国特色，建议在透明度的总体要求下，依次将会计信息质量特征设定为：可靠性，相关性，充分披露。     

Are gold,USD, and Bitcoin hedge or safe haven against stock? The implication for risk management

This study investigates whether gold, USD, and Bitcoin are hedge and safe haven assets against stock and if they are useful in diversifying downside risk for international stock markets. We propose a combined GO-GARCH-EVT-copula approach to examine the hedge and safe haven properties of gold, USD, and Bitcoin. We then examine the attractiveness of these assets in reducing stock portfolio risk by using downside risk measures estimated by the proposed approach and other competing models. We also evaluate the relative performance of the proposed model in reducing downside risk with the competing models. The findings of the study indicate that the USD is the most valuable hedge and safe haven asset closely followed by gold, while Bitcoin is the least valuable. It is also observed that the proposed combined approach performs best in reducing the portfolio downside risk. The findings of this study are of significance for portfolio managers and individual investors who wish to protect the portfolio value during market turmoil.     

拉式供应链系统可靠性分析与改善

首先对供应链的可靠性重要性进行了分析,对供应可靠度和供应链可靠度的进行了定义,然后从可靠性方面提出对供应链系统进行分析改善的途径,最后对零库存拉式供应链系统进行了可靠性分析与改善。     

自动化仓库系统可靠性模糊评价

通过对影响自动化仓库系统各种因素的分析，用模糊综合评价方法对自动化仓库系统的可靠性进行评价。