计算机与现代化 ›› 2009, Vol. 1 ›› Issue (11): 33-35.doi:
• 算法 • 上一篇 下一篇
周明元
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ZHOU Ming-yuan
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摘要： 通过对正态分布函数及试题难度表示的深入分析，质疑了两类常用的难度分布算法的正确性。结合难度在IRT理论的定义，导出一种符合正态分布函数基本原理的试题难度分布算法。比较的结果表明，本算法更先进。
关键词: 试题难度分布, IRT, 等距量表, 正态分布函数
Abstract: Some algorithms for difficulty distribution may have some suspicions, the paper points out the key that it is the correct expression on interval scaling for difficulty. A novel method is put forward to calculate the difficulty distribution according to the difficulty definition in IRT. Simulation shows the effectualness in application.
Key words: difficulty distribution, IRT, interval scaling, normal distribution function
周明元. 基于IRT的试题难度分布算法[J]. 计算机与现代化, 2009, 1(11): 33-35.
ZHOU Ming-yuan. Algorithm for Difficulty Distribution Based on IRT[J]. Computer and Modernization, 2009, 1(11): 33-35.
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