Examining the Measurement Equivalence of Alzheimer Disease Research Centers' Neuropsychological Test Battery (Version 3) Between Singapore and US Samples.
Sze Yan Tay, Way Inn Koay, Simon Kang Seng Ting, Tau Ming Liew
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引用次数: 0
Abstract
Purpose: Standardization of neuropsychological tests is crucial for consistency in cognitive assessment, as well as for validity and comparability of results across different populations. We examined the applicability and measurement equivalence of the Alzheimer Disease Research Centers' Neuropsychological Test Battery (version 3) (ADRC-NTB3) in Singapore.
Methods: The ADRC-NTB3 was administered to 978 older persons with normal cognition in Singapore. To provide comparison between Singapore and US samples, a US sample with similar profile was retrieved from the National Alzheimer Coordinating Center (NACC) database.
Patients: Scores were compared with 1853 participants with similar profile from the United States. Score-difference between the populations was computed using multiple linear regression (adjusted for covariates), with equivalent score considered present when 90% CI of the score-difference fell within the predefined margin of equivalence.
Results: Tasks assessing for memory, processing speed, and executive functioning showed equivalence in scores between US and Singapore samples (adjusted-score difference=-0.94 to 0.09). Singapore sample performed marginally better on the visuospatial task (adjusted-score difference=0.50), but poorer on the language task (adjusted-score difference=-3.22).
Discussion: Nonequivalence of visuospatial and language tasks, which may increase potential misinterpretation of cognitive profiles and misdiagnosis, are related to educational and cultural differences. This highlights the need for different normative data for more accurate diagnostic accuracy as well as research priorities.
期刊介绍：
Alzheimer Disease & Associated Disorders is a peer-reviewed, multidisciplinary journal directed to an audience of clinicians and researchers, with primary emphasis on Alzheimer disease and associated disorders. The journal publishes original articles emphasizing research in humans including epidemiologic studies, clinical trials and experimental studies, studies of diagnosis and biomarkers, as well as research on the health of persons with dementia and their caregivers. The scientific portion of the journal is augmented by reviews of the current literature, concepts, conjectures, and hypotheses in dementia, brief reports, and letters to the editor.
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