Siedlecki Karen L, Stern Yaakov, Reuben Aaron, Sacco Ralph L, Elkind Mitchell S V, Wright Clinton B
Cognitive Neuroscience Division, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, College of Physicians and Surgeons, Columbia University, New York, New York 10032, USA.
J Int Neuropsychol Soc. 2009 Jul;15(4):558-69. doi: 10.1017/S1355617709090857.
Cognitive reserve is a hypothetical construct that has been used to inform models of cognitive aging and is presumed to be indicative of life experiences that may mitigate the effects of brain pathology. The purpose of this study was to evaluate the construct validity of cognitive reserve by examining both its convergent and its discriminant validity across three different samples of participants using structural equation modeling. The cognitive reserve variables were found to correlate highly with one another (thereby providing evidence of convergent validity), but demanding tests of discriminant validity indicated that, in two of the samples, the cognitive reserve construct was highly related to an executive functioning construct.
认知储备是一种假设性的概念，已被用于为认知老化模型提供信息，并被认为能够反映那些可能减轻脑部病变影响的生活经历。本研究的目的是通过使用结构方程模型，在三个不同的参与者样本中检验认知储备的收敛效度和区分效度，从而评估其结构效度。结果发现，认知储备变量之间高度相关（从而提供了收敛效度的证据），但严格的区分效度检验表明，在其中两个样本中，认知储备结构与执行功能结构高度相关。
