Impact of cognition on test-retest reliability and concurrent validity of n-back for Chinese stroke patients.

IF 1.7 4区 心理学 Applied Neuropsychology-Adult Pub Date : 2024-11-01 Epub Date: 2022-09-24 DOI:10.1080/23279095.2022.2121211
Xiuzhen Liu, Fang Li, Weiqun Song
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Abstract

Objective: The objective of this study was the measurement of the test-retest reliability of n-back in Chinese stroke patients.

Methods: Seventy-five sub-acute stroke patients performed n-back twice in three days. The test-retest reliability of n-back was analyzed by correlation coefficient.

Results: The n-back had excellent test-retest reliability in stroke patients. Pearson or Spearman coefficients ranged from 0.81 to 0.88. The intra-class correlation coefficients ranged from 0.72 to 0.87. The Chinese version of Montreal Cognitive Assessment-Basic (MoCA-BC) score was significantly correlated with the performance of n-back. MoCA-BC and n-back accuracy were significantly related in the Mild Cognitive Impairment (MCI) group (r = 0.60 in 1-back, p = .002; r = 0.43 in 2-back, p = .040). However, MoCA-BC was correlated with reaction time (RT) in the Cognitively Normal (CN) group (r = -0.44 in 1-back, p = .003; r = -0.36 in 2-back, p = .018). The test-retest reliability of CN group was mostly higher than that of MCI group RT: 0.71-0.76 in MCI, 0.80-0.88 in CN; accuracy: 0.80-0.85 in MCI, 0.75-0.86 in CN). The practice effect was observed in the CN group instead of the MCI group.

Conclusions: This study indicated that the test-retest reliability of n-back was high in stroke patients. N-back was correlated with cognition. It was preferable to conduct subgroup analyses according to the level of cognitive assessment of patients with stroke.

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认知对中国脑卒中患者 n-back 测试重复可靠性和并发有效性的影响。
研究目的方法:75 名亚急性脑卒中患者在三天内进行了两次 n-back:方法:75 名亚急性脑卒中患者在三天内进行两次 n-back。方法:75 名亚急性脑卒中患者在三天内进行两次 n-back,用相关系数分析 n-back的重测可靠性:结果:n-back 在脑卒中患者中具有良好的重测信度。皮尔逊系数或斯皮尔曼系数在 0.81 至 0.88 之间。类内相关系数为 0.72 至 0.87。中文版蒙特利尔认知评估-基础(MoCA-BC)得分与 n-back 的表现有显著相关性。在轻度认知障碍(MCI)组中,MoCA-BC 和 n-back 的准确性有明显相关性(1-back 中 r = 0.60,p = .002;2-back 中 r = 0.43,p = .040)。然而,在认知正常(CN)组中,MoCA-BC 与反应时间(RT)存在相关性(1-back 中的 r = -0.44,p = .003;2-back 中的 r = -0.36,p = .018)。CN 组的重测信度大多高于 MCI 组,RT:MCI 为 0.71-0.76,CN 为 0.80-0.88;准确度:MCI 为 0.80-0.85,CN 为 0.75-0.86)。在 CN 组而不是 MCI 组观察到了练习效应:结论:本研究表明,脑卒中患者的 N-back 测试重复可靠性很高。N-back与认知能力相关。最好根据脑卒中患者的认知评估水平进行分组分析。
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来源期刊
Applied Neuropsychology-Adult
Applied Neuropsychology-Adult CLINICAL NEUROLOGY-PSYCHOLOGY
自引率
11.80%
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0
审稿时长
>12 weeks
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