《两种任务在艾伦认知水平筛查第六版中对社区居住的精神分裂症患者的心理测量特性》

Psychometric Properties of Two Tasks in the Allen Cognitive Level Screen-Sixth Edition for Community-Dwelling People Living With Schizophrenia.

机构信息

Li-Yu Chiu, MS, is Occupational Therapist, Occupational Therapy Department, Pei-Ling Hospital, Taipei, Taiwan.

Shu-Chun Lee, MS, is Occupational Therapist, Department of Occupational Therapy, Taipei City Psychiatric Center, Taipei City Hospital, Taipei, Taiwan and Lecturer, Department of Special Education, University of Taipei, Taipei, Taiwan.

出版信息

Am J Occup Ther. 2022 Sep 1;76(5). doi: 10.5014/ajot.2022.049133.

DOI:10.5014/ajot.2022.049133

PMID:36053732

Abstract

IMPORTANCE

Empirical evidence is needed on the psychometric properties of the Allen Cognitive Level Screen-Sixth Edition (ACLS-6), an instrument that assesses cognitive functions and is commonly used for people living with schizophrenia.

OBJECTIVE

To examine the convergent validity, discriminative validity, and test-retest reliability of two tasks, stitching and copying, in the ACLS-6 for community-dwelling people living with schizophrenia.

DESIGN

Prospective observational study.

SETTING

Psychiatric center.

PARTICIPANTS

110 people living with schizophrenia.

OUTCOMES AND MEASURES

To examine convergent validity, we calculated correlations (Pearson's r) between the two tasks and between these two tasks and three cognitive measures. We checked for floor and ceiling effects and conducted independent t tests to evaluate discriminative validity. We calculated intraclass correlation coefficients (ICCs) to investigate test-retest reliability.

RESULTS

We found a strong correlation (r = .88) between the two tasks and moderate correlations (rs = .32-.52) between the two tasks and the three cognitive measures. No floor or ceiling effects were observed for the two tasks, and t tests showed significant differences between two participant groups with marginal and mild clinical symptoms (p < .001). The ICC values for the two tasks were .71-.74.

CONCLUSION AND RELEVANCE

The stitching and copying tasks of the ACLS-6 have good convergent validity, discriminative validity, and test-retest reliability for community-dwelling people living with schizophrenia. The copying task showed a strong correlation with the stitching task and a similar score range, so practitioners can consider using the copying task as a substitute for the stitching task. What This Article Adds: The stitching and copying tasks of the ACLS-6 have sound psychometric properties for measuring cognitive functions in community-dwelling people living with schizophrenia.

摘要

重要性

需要有实证证据来证明艾伦认知水平屏幕第六版（ACLS-6）的心理测量特性，该工具评估认知功能，常用于精神分裂症患者。

目的

检验两项任务（缝合和复制）在社区居住的精神分裂症患者 ACLS-6 中的聚合效度、判别效度和重测信度。

设计

前瞻性观察研究。

设置

精神病中心。

参与者

110 名精神分裂症患者。

结果和措施

为了检验聚合效度，我们计算了两个任务之间以及这两个任务与三个认知测量之间的相关性（Pearson r）。我们检查了地板和天花板效应，并进行了独立的 t 检验以评估判别效度。我们计算了组内相关系数（ICC）以调查重测信度。

结果

我们发现两个任务之间存在很强的相关性（r =.88），并且两个任务与三个认知测量之间存在中度相关性（rs =.32-.52）。两个任务均未出现地板或天花板效应，t 检验显示有轻度和边缘临床症状的两组患者之间存在显著差异（p <.001）。两个任务的 ICC 值为.71-.74。

结论和相关性

ACLS-6 的缝合和复制任务对于社区居住的精神分裂症患者具有良好的聚合效度、判别效度和重测信度。复制任务与缝合任务具有很强的相关性，并且具有相似的评分范围，因此从业者可以考虑使用复制任务代替缝合任务。本文增加的内容：ACLS-6 的缝合和复制任务具有良好的心理测量特性，可用于测量社区居住的精神分裂症患者的认知功能。