Practice Effects: A Unique Cognitive Variable
Practice Effects: A Unique Cognitive Variable
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DOI：
10.1080/13854046.2012.722685
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发表时间：
2012-01-01
影响因子：
3.9
通讯作者：
Tometich, Danielle
中科院分区：
文献类型：
--
作者：
Duff, Kevin;Callister, Catherine;Tometich, Danielle
练习效果是指由于使用相同或相似的测试材料进行重复评估而导致的认知测试表现的改善。之前的研究报告称，这些改善可能会因年龄、教育/智力和疾病状况而异。然而，需要更多的信息，变量影响实践效果。本研究前瞻性地量化了268名社区居住的老年人的短期实践效果，并将这些实践效果与人口统计学变量、整体认知、病前智力、抑郁症和个人认知领域进行了比较。总体而言，实践效果与大多数人口统计学和临床特征或个人认知领域没有显着相关，这与我们的假设相反。然而，由于实践效果似乎不受许多变量的影响，通常会影响认知评分，他们可能是一个独特的和有价值的工具，可以应用于许多不同的患者群体。
Practice effects are improvements in cognitive test performance due to repeated evaluation with the same or similar test materials. Prior studies have reported that these improvements can vary with age, education/intellect, and disease status. However, additional information is needed about variables that influence practice effects. The current study prospectively quantified short-term practice effects in 268 community-dwelling older adults and compared these practice effects to demographic variables, global cognition, premorbid intellect, depression, and individual cognitive domains. Overall, practice effects were not significantly related to most demographic and clinical characteristics or individual cognitive domains, which was contrary to our hypotheses. However, since practice effects appear to be uninfluenced by many variables that typically affect cognitive scores, they may be a unique and valuable tool that could be applied in a number of diverse patient groups.