Test validation from a conceptual and legal perspective: Issues and trends

A little-explored issue in the psychological and legal literature involves test validation. This article discusses issues of test validation from both psychological and legal perspectives. Areas of inconsistency are noted and probable future directions are high-lighted.     

阅读测试效度浅析

阅读测试效度是以语言学习，语言教学和语言测试的研究为基础的。它包含阅读过程和阅读技巧，涉及测试目的以及所学专业知识；它包括选择相关并合适的材料，设计出合适的测试项目而又不影响被试者的阅读能力；它还要考虑题的难度和干扰项等因素。     

Diagnostics cannot have much power against general alternatives

Model diagnostics are shown to have little power unless alternative hypotheses can be narrowly defined. For example, the independence of observations cannot be tested against general forms of dependence. Thus, the basic assumptions in regression models cannot be inferred from the data. Equally, the proportionality assumption in proportional-hazards models is not testable. Specification error is a primary source of uncertainty in forecasting, and this uncertainty will be difficult to resolve without external calibration. Model-based causal inference is even more problematic.     

双金属复合弯管及管件生产检验过程存在问题探讨

管线输送介质成分越来越复杂,对管线内壁抗腐蚀性能的要求也越来越高,一些管线被设计为双金属复合管线。由于双金属复合弯管和管件没有国家和行业标准可指导生产检验,造成了复合弯管和管件在生产检验过程中遇到的一系列问题,其中最为突出的问题是热处理工艺、超声波检测和内衬层浅表面裂纹问题。对内衬层浅表面裂纹缺陷问题提出了解决办法。     

浅析负压技术在一键式智能化阀门检验装置中的应用

一键式智能化阀门检验装置是在智能化阀门试验机基础上开发的二代产品,主要是解决了一代产品运行过程中的不足。而负压技术是一键式智能化阀门检验装置改进的主要技术创新点,有效地解决了阀门水压试验过程中腔体内空气无法排净,影响检验精度与检验效率的难题,体现了设备的先进性。     

“Q-RPIS-C”精细质量管理

以油田开发"有质量、有效益、可持续"的发展方针为测试技术服务导向,就油田测试质量管理,通过综合运用精细化管理理论和质量管理理念,首创油田测试精细质量管理(Q-RPIS-C)模式,同时,结合油田测试精细质量管理的实践及应用效果,阐述了油田测试实施精细质量管理的必要性及可行性。     

合约变异在测试数据优化中的研究及应用

软件测试是保证Web服务质量的重要技术手段,测试数据生成是Web服务测试的重要内容,而生成的初始测试数据量大,数据冗余,为了减少初始测试数据数量,提高测试数据的有效性,本文在变异测试方法的基础上,使用合约变异方法对初始测试数据进行优化,据此可以生成一批达到一定变异充分度的有效测试数据,并通过实验验证了方法的有效性。     

An asymmetrical approach to understanding configurations of customer loyalty in the airline industry

This study employs fuzzy set qualitative comparative analysis (fsQCA) to examine asymmetrical relationships among service attributes, relationship quality, and customer loyalty in the airline industry. The study incorporates customers’ demographics and psychological variables to model customer loyalty. Customer loyalty is operationalised as behavioural and attitudinal dimensions in order to capture customers’ actual behaviours and behavioural intentions. Symmetrical testing is also used to compare findings with those from fsQCA application. The study provides various causal recipes or configurations for predicting relationship quality and customer loyalty. The comparison between symmetrical and asymmetrical findings presents deeper and more insightful information. These findings provide useful guidelines and references for the relevant researchers and practitioners. The study also contributes to the literature by utilising symmetrical and asymmetrical tools to advance understanding of antecedent conditions of relationship quality and customer loyalty.     

我国辐照食品检测技术与标准的发展

文章介绍了我国几种常用的辐照食品检测技术及应用情况，阐述了近年来我国辐照食品检测标准的现状，并对我国未来辐照食品检测技术和标准的研究及发展进行了探讨。