Ryan Joseph J, Brown Kristina I, Paolo Anthony M
Department of Psychology, Central Missouri State University, Warrensburg, Missouri 64093, USA.
Int J Neurosci. 2005 May;115(5):699-703. doi: 10.1080/00207450590882028.
The authors evaluated the ability of WAIS-R variables to discriminate normal from brain-damaged persons 75 years of age and older. Fifty-four brain-damaged patients and 54 healthy elderly were matched on the variables of age, education, sex, and race. Significant level of performance differences emerged between the groups on all subtests and the three IQs. No group differences were found on the VIQ-PIQ discrepancy score or range of subtest scatter. Step-wise discriminant analysis revealed that Digit Symbol was the most potent WAIS-R variable, accounting for 34% of the variance and correctly classifying 79.6% of the subjects.
作者评估了韦氏成人智力量表修订版（WAIS-R）各项变量区分75岁及以上正常人和脑损伤患者的能力。54名脑损伤患者和54名健康老年人在年龄、教育程度、性别和种族等变量上进行了匹配。两组在所有分测验和三个智商得分上均出现了显著的表现差异。在言语智商-操作智商差异得分或分测验离散程度范围上未发现组间差异。逐步判别分析显示，数字符号是WAIS-R中最有效的变量，解释了34%的方差变异，正确分类了79.6%的受试者。
