Evaluating the dimensionality of perceived cognitive function.
Evaluating the dimensionality of perceived cognitive function.
复制标题
DOI：
10.1016/j.jpainsymman.2008.07.012
复制
发表时间：
2009-06
影响因子：
4.7
通讯作者：
Cella, David
中科院分区：
文献类型：
--
作者：
Lai, Jin-Shei;Butt, Zeeshan;Wagner, Lynne;Sweet, Jerry. J.;Beaumont, Jennifer L.;Vardy, Janette;Jacobsen, Paul B.;Shapiro, Pamela J.;Jacobs, Sheri R.;Cella, David
认知功能下降在癌症患者和其他临床人群中很常见。由于直接的神经心理学测试通常不可行或负担不起，因此在筛查缺陷方面有潜在的效用，这可能需要更全面的神经心理学评估。此外，一些证据表明，感知认知功能（PCF）与神经图像的结构和功能变化独立相关，并且可能先于更明显的缺陷。要适当地度量PCF，必须了解它的组成部分和底层维度结构。本研究的目的是检查癌症患者的PCF维度。样本包括来自四个临床试验的393名癌症患者，他们完成了一份由患者和临床医生确定的优先关注领域组成的问卷：自我报告的精神敏度、注意力、记忆力、语言流畅性和功能干扰。每个领域都有消极的措词（即赤字）和积极的措词（即能力）项目。数据分析采用Cronbach 's alpha、项目-总量相关性、单因素验证性因素分析（CFA）和双因素分析模型。结果表明，认知缺陷项目与认知能力项目具有明显的差异，支持PCF的双因素结构。基于这两个因素的PCF评分应该会改善对癌症患者PCF的评估。
Decrements in cognitive function are common in cancer patients and other clinical populations. As direct neuropsychological testing is often not feasible or affordable, there is potential utility in screening for deficits that may warrant a more comprehensive neuropsychological assessment. Furthermore, some evidence suggests that perceived cognitive function (PCF) is independently associated with structural and functional changes on neuroimagery, and may precede more overt deficits. To appropriately measure PCF, one must understand its components and the underlying dimensional structure. The purpose of this study was to examine the dimensionality of PCF in people with cancer. The sample included 393 cancer patients from four clinical trials who completed a questionnaire consisting of the prioritized areas of concerns identified by patients and clinicians: self-reported mental acuity, concentration, memory, verbal fluency, and functional interference. Each area contained both negatively-worded (i.e., deficit) and positively-worded (i.e., capability) items. Data were analyzed by using Cronbach’s alpha, item-total correlations, one-factor confirmatory factor analysis (CFA), and a bi-factor analysis model. Results indicated that Cognitive Deficiency items are distinct from Cognitive Capability items, supporting a two-factor structure of PCF. Scoring of PCF based on these two factors should lead to improved assessment of PCF for people with cancer.
登录
查看更多内容
DOI：
10.1080/10705519909540118
发表时间：
1999-01-01
影响因子：
6
作者：
Hu, Li-tze;Bentler, Peter M.
通讯作者：
Bentler, Peter M.
影响因子：
1.9
作者：
ALLEN C C;RUFF R M
通讯作者：
RUFF R M
影响因子：
6.2
作者：
Jansen, CE;Miaskowski, C;Kramer, J
通讯作者：
Kramer, J
影响因子：
3.8
作者：
Chen, Fang Fang;West, Stephen G.;Sousa, Karen H.
通讯作者：
Sousa, Karen H.
影响因子：
22.4
作者：
CAMPBELL, DT;FISKE, DW
通讯作者：
FISKE, DW