The methods applied in data analysis are the analysis of item characteristic curve, item information function, test information function and item validity, as well as the checking of biased items.
质量评估的主要方法是对项目特征曲线、项目信息函数、测验信息函数、项目预测效度的分析和对项目偏差的检测。
This article to installs in the ambient test cell DAQ-1202 data acquisition system's composition, the function and the characteristic, has carried on the detailed introduction.
本文对安装于环境试验室的DAQ - 1202数据采集系统的组成、功能和特点，进行了详细的介绍。
This article introduced one kind of brand-new involvement type microcomputer relay protection test installation and its realization principle, main function, the characteristic and application method.
介绍了一种全新的介入式微机继电保护的实现原理、主要功能、特点和使用方法。
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