Investigation of the single case in neuropsychology: confidence limits on the abnormality of test scores and test score differences
Investigation of the single case in neuropsychology: confidence limits on the abnormality of test scores and test score differences
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DOI：
10.1016/s0028-3932(01)00224-x
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发表时间：
2002-01-01
期刊：
影响因子：
2.6
通讯作者：
Garthwaite, PH
中科院分区：
文献类型：
--
作者：
Crawford, JR;Garthwaite, PH
神经心理学家经常需要估计个体患者的测试分数的异常，或测试分数差异，当与患者进行比较的标准或对照样本的大小适中时。Crawford和豪厄尔[临床神经心理学家12（1998）482]和Crawford等。[Journal of Clinical and Experimental Neuropsychology 20（1998）898]提出了在这种情况下获得测试分数异常和测试分数差异的点估计的方法。在本研究中，我们扩展了这项工作，通过开发方法设置置信限的估计异常。虽然这些限值可用于微小样本量的标准或对照样本数据，但当样本量适中时，它们将最有用。我们还开发了一种方法，用于获得点估计值和置信限的异常之间的差异患者的平均得分的k-测试和测试进入该平均值。计算机程序，实现公式的置信限（和点估计）的描述和提供。(C)2002爱思唯尔科技有限公司版权所有。
Neuropsychologists often need to estimate the abnormality of an individual patient's test score, or test score discrepancies, when the normative or control sample against which the patient is compared is modest in size. Crawford and Howell [The Clinical Neuropsychologist 12 (1998) 482] and Crawford et at. [Journal of Clinical and Experimental Neuropsychology 20 (1998) 898] presented methods for obtaining point estimates of the abnormality of test scores and test score discrepancies in this situation. In the present study, we extend this work by developing methods of setting confidence limits on the estimates of abnormality. Although these limits can be used with data from normative or control samples of tiny size, they will be most useful when the sample sizes are modest. We also develop a method for obtaining point estimates and confidence limits on the abnormality of a discrepancy between a patient's mean score on k-tests and a test entering into that mean. Computer programs that implement the formulae for the confidence limits (and point estimates) are described and made available. (C) 2002 Elsevier Science Ltd. All rights reserved.