“item difficulty”的概念、定义、翻译、参考文献-科学参考

单词	item difficulty
释义	item difficulty Encyclopedia 理学项目分析释 item difficulty项目难度被试完成测验项目任务时所遇到的困难程度。一般在学业和能力测验中会较多使用难度来考察项目对于被试的难易程度。
随便看	additive additive algebra additive and subtractive hybrid machine tool additive arithmetic function additive bases additive basis additive boundary additive category additive cellular automaton additive channel additive character additive class additive class of sets additive coboundary additive color additive color mixing additive color mixture additive colour mixture additive composition additive composition law additive congruence additive congruential method additive constant additive construction robotics additive content

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。