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问号选项在进度测试中的影响:一项大型纵向研究

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在传统的医学进步测试 (PT) 中,问号选项可能会对结果产生偏见. 计算机自适应PT (CA-PT) 显示,使用问号选项的学生表现更好,这表明公式得分不仅仅是知识.

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科学领域:

  • 医疗教育 医学教育
  • 评估和评价的评估和评估.
  • 心理测量 心理测量 心理测量

背景情况:

  • 在医学进步测试 (PT) 中,传统的公式得分使用一个问号选项来阻止猜测.
  • 这一特征可能使不愿冒险的学生处于不利地位,并引入由于考试策略的偏见.
  • 荷兰医学院转向计算机自适应PT (CA-PT),使用项目响应理论,动态调整难度并省略问号选项.

研究的目的:

  • 评估传统PT中的问号选项对CA-PT的后续表现的影响.
  • 通过CA-PT探索传统PT中的问号使用与学生能力评估之间的关系.
  • 分析不同学生队伍中问号使用的影响的变化.

主要方法:

  • 追溯分析了来自七个学院的医学学生的数据,他们完成了传统PT和CA-PT.
  • 评估Z-分数的总和问号分数 (未回答的问题) 在传统的PT中,以及CA-PT中的theta分数.
  • 线性建模以确定问号得分对theta的影响,控制常规PT得分;对学生子组进行集群分析.

主要成果:

  • 具有类似传统PT分数的学生使用问号选项 (留下更多未回答的问题) 通常在CA-PT上表现更好.
  • 观察到,随着学生在学术研究中的进步,这种效应会减弱.
  • 集群分析表明学生子组之间存在可变效应,在第四年最为突出,在第五年观察到反向效应.

结论:

  • 在公式得分中使用问号选项显著影响学生的成绩,显示出相当大的变化.
  • 这种变化表明,公式评分评估的因素超出了纯知识范围,例如测试策略或风险厌恶.
  • 将评估得分方法与其预期的教育目标结合起来,对于准确的能力测量至关重要.