Department of Chinese & Bilingual Studies, Faculty of Humanities, Hong Kong Polytechnic University, Hong Kong SAR.
PLoS One. 2024 May 24;19(5):e0303810. doi: 10.1371/journal.pone.0303810. eCollection 2024.
The current study aimed to validate the Cantonese version of the Amsterdam-Nijmegen Everyday Language Test (CANELT), a functional communication assessment tool for Cantonese speakers with aphasia. A quantitative scoring method was adopted to examine the pragmatics and informativeness of the production of people with aphasia (PWA).
CANELT was translated from its English version with cultural adaptations. The performance on the 20-item CANELT collected from 56 PWA and 100 neurologically healthy Cantonese-speaking controls aged 30 to 79 years was orthographically transcribed. Scoring was based on the completeness of the main concepts produced in the preamble and subsequent elaborations, defined as Opening (O) and New Information (NI). Measures examining the validity and reliability were conducted.
An age effect was found in neurologically healthy controls, and therefore z scores were used for subsequent comparisons between neurologically healthy controls and PWA. The test showed strong evidence for known-group validity in both O [χ2 (2) = 95.2, p < .001] and NI [χ2 (2) = 100.4, p < .001]. A moderate to strong correlation was found between CANELT and standardized aphasia assessment tools, suggesting satisfactory concurrent validity. Reliability measures were excellent in terms of internal consistency (Cronbach's α of .95 for both 'O' and 'NI'), test-retest reliability (ICC = .96; p < .001), intra-rater reliability (ICC = 1.00; p < .001), and inter-rater reliability for O (ICC = .99; p < .001) and NI (ICC = .99; p < .001). Sensitivity and specificity for O are 97% and 76.8%, respectively, while for NI, a sensitivity of 95% and specificity of 91.1% were obtained.
Measures on validity and reliability yielded promising results, suggesting CANELT as a useful and reliable functional communication assessment for PWA. Its application in managing PWA and potential areas for development are discussed.
本研究旨在验证粤语版阿姆斯特丹-奈梅亨日常语言测试（CANELT），这是一种针对粤语失语症患者的功能性交流评估工具。采用定量评分方法检查失语症患者（PWA）言语表达的语用学和信息量。
CANELT 从其英文版翻译而来，并进行了文化调适。对 56 名 PWA 和 100 名年龄在 30 至 79 岁之间的神经健康的粤语使用者在 20 项 CANELT 上的表现进行了正字法转录。评分基于在开场白和后续阐述中产生的主要概念的完整性，定义为开场白（O）和新信息（NI）。进行了有效性和可靠性的测量。
在神经健康的对照组中发现了年龄效应，因此在随后的神经健康对照组和 PWA 之间的比较中使用了 z 分数。该测试在 O [χ2（2）= 95.2，p <.001]和 NI [χ2（2）= 100.4，p <.001]方面均显示出强的已知组有效性证据。CANELT 与标准化失语症评估工具之间存在中度至强相关性，表明具有令人满意的同时有效性。在内部一致性方面，可靠性测量值非常高（O 的 Cronbach's α 为.95，NI 的 Cronbach's α 为.95），重测信度（ICC =.96；p <.001），内部评估者信度（ICC = 1.00；p <.001），以及 O 的外部评估者信度（ICC =.99；p <.001）和 NI 的外部评估者信度（ICC =.99；p <.001）。O 的灵敏度和特异性分别为 97%和 76.8%，而对于 NI，灵敏度为 95%，特异性为 91.1%。
有效性和可靠性测量结果令人鼓舞，表明 CANELT 是一种针对 PWA 的有用且可靠的功能性交流评估工具。讨论了其在管理 PWA 和潜在发展领域的应用。
