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相关概念视频

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In the field of psychology, there are several ways to organize measurements of a trait, feature, or characteristic (i.e., variables). Qualitative data, such as ethnicity, can be tabulated into a frequency count to provide information about the proportion, as well as the variety of groups in a sample or population. On the other hand, researchers can perform a wider set of calculations on quantitative data. The mean, mode, and median, for instance, are central tendency measures to identify a...
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相关实验视频

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在正常受试者中对主观视觉垂直和主观视觉水平评估的统计考虑

Carey D Balaban1, Erin Williams2,3, Cynthia L Holland4

  • 1Departments of Otolaryngology, Neurobiology, Communication Sciences and Disorders, Bioengineering, and Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA.

Otology & neurotology open
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概括

这项研究分析了主观视觉垂直 (SVV) 和主观视觉水平 (SVH) 数据,发现常见的临床措施不受设备类型或性别的显著影响. 规范数据和高斯分布支持客观异常值检测在前庭功能测试.

关键词:
规范性价值是指指规范性价值.预设效应的预设效应.性差异性差异性差异性差异性差异性差异性差异性主观的视觉水平视觉水平主观的视觉垂直视觉垂直

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科学领域:

  • 神经科学是一个神经科学.
  • 垂体系统的功能 垂体系统功能
  • 临床听力学 临床听力学

背景情况:

  • 主观视觉垂直 (SVV) 和主观视觉水平 (SVH) 评估是临床前庭功能测试中的标准.
  • 了解SV和SVH的统计分布和规范值对于准确的临床解释至关重要.

研究的目的:

  • 分析回顾性SVV和SVH数据以确定统计分布和规范值.
  • 评估预设效应,性别差异和设备平台 (固定头和无头) 对SVV和SVH测量的影响.
  • 评估当前临床测量平均方法的适用性.

主要方法:

  • 使用两个测试平台对408名健康个体 (18-50岁) 的SVV和SVH数据进行了回顾性分析.
  • 使用SPSS和MATLAB进行统计分析,以检查预设效应,性别差异和设备相互作用.
  • 分布分析用于测试临床指标的高斯分布.

主要成果:

  • 在SVV或SVH测量中没有观察到与年龄相关的显著影响.
  • 预设角度效应和偏离直角性与之前的报道是一致的.
  • 性别和设备类型显示出小幅度的差异,SVV和SVH的常见临床平均方法没有受到这些因素的显著影响.
  • 分布分析支持了临床指标底层高斯分布的假设.

结论:

  • 建立了SVV和SVH指标的规范数据和验证的高斯分布.
  • 这些发现支持使用从这些规范值中得出的z分数来客观识别临床环境中的功能异常值.
  • 针对SVV和SVH的常见临床测量在不同设备和性别之间是强大的.