认知表现准确性的个体内跨会话变异性的心理测量学特性。
Psychometric properties of within-person across-session variability in accuracy of cognitive performance.
机构信息
University of Virginia, Charlottesville, VA 22904, USA.
出版信息
Assessment. 2012 Dec;19(4):494-501. doi: 10.1177/1073191112438744. Epub 2012 Mar 2.
Abstract
Although most psychological assessments are based on measures related to an individual's average level of performance, it has been proposed that measures of variability around one's average may provide unique individual difference information and have clinical significance. The current study investigated properties of within-person variability in measures of performance accuracy in a sample of more than 1,700 healthy adults. Contrary to what has been reported with measures of within-person variability in reaction time, measures of within-person variability in performance accuracy from different cognitive tests had weak correlations with one another, very low stability across time, and near-zero correlations with longitudinal change in cognitive abilities.
摘要
虽然大多数心理评估都是基于与个体平均表现水平相关的测量，但有人提出，围绕个体平均值的变异性测量可能提供独特的个体差异信息，并具有临床意义。本研究在超过 1700 名健康成年人的样本中，调查了在表现准确性测量中的个体内变异性的特性。与在反应时间的个体内变异性的测量所报告的情况相反，来自不同认知测试的个体内变异性测量在彼此之间的相关性较弱，在时间上的稳定性非常低，并且与认知能力的纵向变化几乎没有相关性。
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