“项目鉴别指数”的概念、定义、翻译、参考文献-科学参考

单词	项目鉴别指数
释义	项目鉴别指数 Encyclopedia 理学【基本概念】释 item discrimination index项目鉴别指数高分组和低分组被试作答某题的得分率之差，是度量题目区分度的最简单指标之一，只能用于二级评分题目。又称鉴别度指数。
随便看	railway roadbed problems and remedial measures railway rolling stock railway rolling stock maintenance and repair railway sand prevention railway section block railway shunting hump railway signal railway signal indication railway signaling railway signaling power supply equipment railway signaling reliability railway signaling vital relay railway sound barrier railways passenger car equipment railway station railway station and terminal railway structural deformation survey railway subgrade engineering railway subgrade maintenance railway subgrade non-destructive detection railway switch transition equipment railway tank car railway tanker railway technical station railway terminal

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。