检查神经心理测试表现的个体内变异性:用于识别认知障碍和残疾痕迹的含义
Mira I Leese1, Maya A Marder1, John-Christopher A Finley2
1Department of Psychiatry, University of Illinois, College of Medicine.
Psychological assessment
|February 19, 2026
概括
个体内变异分散 (IIV-d) 度量,特别是变化系数 (CoV),可以帮助分类认知障碍严重程度,并在神经心理评估中检测无效的测试表现. 需要进一步的研究来完善它们的诊断效用.
科学领域:
- 神经心理学 神经心理学
- 认知科学 认知科学
- 心理测量 心理测量 心理测量
背景情况:
- 个体内变异分散 (IIV-d) 测量测试期间的性能波动.
- 较高的IIV-d可能表明认知障碍或不可信的测试表现.
- 对于IIV-d对组分类的有用性需要进一步研究.
研究的目的:
- 评估个体标准偏差和变化系数 (CoV) 用于分类神经认知障碍和无效测试表现.
- 为了确定IIV-d指标的预测效用.
主要方法:
- 分析了421名接受神经心理评估的成人门诊患者的数据.
- 将患者分为四组:没有神经认知障碍,轻度神经认知障碍,重大神经认知障碍和失效的表现.
- 使用独立的性能有效性测试和神经心理测试电池.
主要成果:
- 在这四组中,个人标准偏差和Cov都显著不同.
- 认知障碍严重程度的增加与较高的IIV-d相关.
- 冠状病毒显示出比个体标准偏差更大的预测效用.
- 高可变性与无效的表现有关.
结论:
- IIV-d指标,特别是Cov,可以区分认知障碍的程度.
- IIV-d指标显示了识别无效表现的潜力,尽管将其与主要神经认知障碍区分开来仍然具有挑战性.
- 需要进一步的研究来探索IIV-d在诊断澄清中的增量价值.
相关概念视频
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