translation, cultural adaptation, and validity of barnes language assessment in persian ageing population: a preliminary study

Introduction: 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 for persian-speaking populations.materials and methods: this cross-sectional translated and culturally adapted the bla into persian (bla-per) and evaluated its psychometric properties. the translation process followed the international quality of life assessment protocol. the bla-per was administered to 30 healthy older adults and 30 individuals with alzheimer disease (ad). test-retest reliability was assessed in the ad group. statistical data analysis was performed using the 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 the analysis of covariance 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.