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Sign Test for Matched Pairs01:17

Sign Test for Matched Pairs

143
The sign test for matched pairs offers a robust method for comparing two paired samples, often for the effects of an intervention in one of them. This method is very useful in situations where the underlying distribution of the data is unknown. The test compares two related samples—often pre- and post-treatment measurements on the same subjects—to determine if there are significant differences in their median values.
To conduct the sign test, we first calculate the differences in...
143

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Updated: Jul 14, 2025

Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking
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使用物品分数和干扰器来检测测试验速度.

Kylie Gorney1, James A Wollack1, Daniel M Bolt1

  • 1Department of Educational Psychology, University of Wisconsin-Madison, Madison, WI, USA.

Applied psychological measurement
|October 9, 2023
PubMed
概括

检测测试速度对于准确的结果至关重要. 使用项目分数和分心因素的新变化点分析 (CPA) 程序改善了加快的考生检测和参数估计.

科学领域:

  • 心理测量 心理测量 心理测量
  • 教育测量教育的测量
  • 统计分析 统计分析

背景情况:

  • 测试速度,即时间限制影响性能,可能会影响受试者和项目参数估计.
  • 准确检测速度过快的受试者对于有效的测试结果至关重要.
  • 现有的检测速度的方法有局限性.

研究的目的:

  • 开发一种新的变化点分析 (CPA) 程序,用于检测测试速.
  • 提高识别超速受试者的准确性,并估计超速发生的点.
  • 为了利用从项目分心器中获取信息,这些分心器通常在多项选择测试中可用.

主要方法:

  • 开发一种新的CPA程序,包括项目分数和分散注意力的信息.
  • 进行了广泛的模拟,以评估拟议的CPA程序的性能.
  • 将CPA程序应用于真实世界的数据集.

主要成果:

  • 与现有方法相比,新的CPA程序证明了加快考试的检测效果更好.
  • 该程序可以获得更准确的变化点估计.
  • 物品分散注意力的信息显著有助于提高速度的检测.
关键词:
变化点分析 变化点分析分心因子分析 分心因子分析嵌套的 logit 模型测试速度的测试速度

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结论:

  • 拟议的CPA程序提供了一个更有效的方法来检测测试速度.
  • 在CPA中利用分心信息是提高心理测量分析准确性的宝贵方法.
  • 这种方法对于确保大规模评估的有效性具有实际意义.