Extending the administration time of the letter fluency test increases sensitivity to cognitive status in aging.

Extending the administration time of the letter fluency test increases sensitivity to cognitive status in aging.
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DOI:
10.1080/03610730902922119
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发表时间:
2009-07
影响因子:
1.8
通讯作者:
Donovick PJ
Donovick PJ
中科院分区:
医学4区
文献类型:
--
作者:
Holtzer R;Goldin Y;Donovick PJ

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我们研究了将字母流畅性测试的执行时间从每字母1分钟(标准执行时间)延长到2分钟是否会增加该测试对老年人认知状态的敏感性。参与者(平均年龄= 84.6)被分为认知障碍组(n=20)和对照组(n=40)。皮尔逊相关性和散点图分析表明,痴呆评定量表得分与字母流畅度之间的关联更高,当后者的表现延长到两分钟时,变化更少。方差分析显示,与对照组相比,认知障碍组在字母流畅性任务的第二分钟产生的单词更少。最后,判别函数分析显示,将字母流畅性测试延长至两分钟会增加对照组和认知障碍组之间的辨别能力。
We examined whether extending the administration time of letter fluency from one minute per letter trial (standard administration) to two minutes increased the sensitivity of this test to cognitive status in aging. Participants (mean age = 84.6) were assigned to cognitive impairment (n=20) and control (n=40) groups. Pearson correlations and scatter plot analyses showed that associations between the Dementia Rating Scale scores and letter fluency were higher and less variable when performance on the latter was extended to two minutes. ANOVA showed that the cognitive impairment group generated fewer words in the second minute of the letter fluency task compared to the control group. Finally, discriminant function analyses revealed that extending the letter fluency trials to two minutes increased discrimination between the control and cognitive impairment groups.
DOI: 10.1007/s002590000351
发表时间: 2000-12-01
期刊: EUROPEAN JOURNAL OF NUCLEAR MEDICINE
影响因子: --
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