“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	closed surface integral closed syllable closed system closed system of elements closed system of functions closed system of hot water supply closed term closed timelike curve closed [time] path Green's function closed time path Green's function closed topological manifold closed topology closed trail closed trajectory closed transformation closed traverse closed type closed type formula Closed type questions closed type switchgear closed unbounded set closed under addition closed under an operation closed under an operator closed under intersection

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。