Emerging Validation for the Adapted Chinese Version of Quick Aphasia Battery

J Multidiscip Healthc. 2023 Aug 30:16:2557-2566. doi: 10.2147/JMDH.S417810. eCollection 2023.

Abstract

Purpose: The quick aphasia battery (QAB) was designed to evaluate language disorder from multi-dimension efficiently, which had been translated into several languages but lacked in Chinese. This study conducted cross-cultural adaption for the Chinese version and verified its psychometric properties.

Material and methods: First, the Chinese Version of quick aphasia battery (CQAB) was adapted following WHO literature guidelines with steps of forward translation, expert panel, back-translation, pre-test, and interview, then develop the final version. Second, the psychometric properties tests were conducted in 128 post-stroke patients to identify if aphasia happens and verify the validity and reliability of CQAB.

Results: The Cronbach's alpha coefficient of the CQAB is 0.962, test-retest reliability 0.849, and inter-rater reliability 0.998. Content validity 0.917, KMO 0.861, exploratory factor analysis extracted 2 factors named "language understanding" and "language program", cumulative variance contribution rate is 91.588% >50%. Calibration association validity 0.977. Sensitivity 0.977, specificity 0.932, with the optimal cutoff point is 8.86.

Conclusion: The study supported CQAB, which adapted following standardized guidelines, is reliable and effective to assess language impairment in post-stroke patients.

Keywords: adaption; cross-cultural; post-stroke; reliability; validity.

Grants and funding

Research grants from Health Science and Technology of Pudong Health Bureau of Shanghai (Grant No. PW2022A-03); the Academic Leaders Training Program of Pudong Health Bureau of Shanghai (Grant No. PWRd2022-16); the Leading Talents in the Three Year Action Plan for Discipline Construction of the School of Nursing (Preparatory) at Tongji University School of Medicine (Grant No. JS2210204); and Important Weak Subject Construction Project of Shanghai Pudong New Area Health Commission (Grant No. PWZbr2022-04).