威斯康星卡片分类测验常用指标的稳定性分析

Stability of Commonly Used Measures in the Wisconsin Card Sorting Test

目的 :分析威斯康星卡片分类测验 (WCST)在正常人、精神分裂症、神经症和酒依赖患者中常用指标的稳定性。方法 :分别对 45名正常人 ,76例精神分裂症患者 (阳性症状为主 3 9例 ,阴性症状为主3 7例 ) ,10例神经症和 9例酒依赖患者进行两次WCST测试 ,间隔 1周 ;对两次测查的各指标进行配对t -检验和相关分析。结果 :各疾病组的反应持续性及概念形成的指标的稳定性良好 ,t检验两次分值的差异无显著性 (P >0 0 5 ) ;正常组两次分值差异有显著性 (P <0 0 5 ) ,第二次成绩好于第一次 ,与学习效应有关。两次测验各指标的相关系数均值为 0 60 6。结论 :WCST在正常人和上述疾病人群使用时 ,持续性错误应答数和完成第一个分类所需应答数的稳定性良好 。

Objective:To study the stability of Wisconsin Card Sorting Test (WCST) in patients with schizophrenia, neurosis, alcoholism and healthy volunteers Method:WCST was applied twice with a interval of 7 days to patients came form Beijing Huilongguan hospital, including 76 schizophrenics, 10 neurotics, 9 alcoholics, as well as 45 healthy volunteers Using paired t test and correlation analysis to get test-retest reliability Result:There was good stability for preservative and conceptual score in each patient's group, paired t test showed no significant difference between the first and second test In healthy volunteers, there was significant difference between the two tests, the score of the second test was better than the first, which might be explained by their learning capacity The correlation between the two tests was 0 61 Conclusion:Among the eight commonly used indexes of WCST, the preservative errors and the first catalogue responds are more reliable than the rest, which could be used as distinguished measures for cognitive function