Research Article

Translation, Cultural Adaptation, and Validity of Barnes Language Assessment in Persian Ageing Population: A Preliminary Study

Abstract

Background: As the global population ages, the need for sensitive language assessments for dementia increases. While the Barnes Language Assessment (BLA) is a valuable tool in English, it has not been translated and validated in Persian-speaking populations.
Methods: This cross-sectional study aimed to translate and culturally adapt the BLA into Persian (BLA-Per) and evaluate its psychometric properties. The translation process followed the International Quality of Life Assessment (IQOLA) protocol. The BLA-Per was administered to 30 healthy older adults and 30 individuals with Alzheimer's disease (AD). Test-retest reliability was assessed in the AD group. Statistical data analysis was performed using SPSS software (version 24) at a significance level of 0.05.
Results: Due to significant differences between the patients and cognitively healthy groups regarding age and education years, we used ANCOVA to control for these variables' effects on between-group comparisons. Significant differences in BLA-Per scores were observed between healthy controls and AD patients in 8 out of 14 test components, demonstrating good discriminative validity. Intra-class correlation coefficients for test-retest reliability were above 0.75 for most subtests.
Conclusion: The BLA-Per demonstrated good validity and reliability in assessing language impairments in Persian-speaking individuals with AD. Future research should investigate the BLA-Per in larger samples across different age groups and stages of AD.

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IssueArticles in Press QRcode
SectionResearch Article(s)
Keywords
Alzheimer Disease, Aging, Language Tests, Psychometrics, Test Validity, Test Reliability

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1.
Khatoonabadi AR, Modarres Zadeh A, Jafari S, Maroufizadeh S, Brayan K. Translation, Cultural Adaptation, and Validity of Barnes Language Assessment in Persian Ageing Population: A Preliminary Study. jmr. 2025;(-).