ArticlePloS one2022
Cross-national harmonization of cognitive measures across HRS HCAP (USA) and LASI-DAD (India).
Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed.
- Harmonising Depression and Anxiety Measures Across International Cohorts: A Framework Validated Using Measurement Invariance.International journal of methods in psychiatric research · 2026Article
- Coexisting Anemia and Elevated C-Reactive Protein in Relation to Memory-Related Cognitive Outcomes: Evidence From CHARLS With Exploratory Support From ELSA.Geriatrics & gerontology international · 2026Article
- Development and validation of a harmonized memory score for multicenter Alzheimer's disease and related dementia research.Alzheimer's research & therapy · 2026Article
- A study evaluation framework for measuring cognition: lessons learned in cross-national contexts from four English-speaking aging cohorts.European journal of epidemiology · 2026Article
- Harmonization of late-life participation in cognitively stimulating activities across four cohort studies of cognitive aging.Experimental gerontology · 2026Article
- Dual sensory loss and cognitive performance among older adults in India.Journal of Alzheimer's disease : JAD · 2026Article
- Using Bayesian item response theory for multicohort repeated measure design to estimate individual latent change scores.Psychological methods · 2025Article
- An assessment of intrinsic capacity among older Indian adults from the Longitudinal Ageing Study in India.Nature aging · 2025Article
- Cognitive data harmonization across two racially diverse cohorts in the United States.Alzheimer's & dementia. Behavior & socioeconomics of aging · 2025Article
- Harmonized cognitive performance in an older adult cohort of Vietnamese American immigrants: The VIP study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Development of a refined harmonization approach for longitudinal cognitive data in people with HIV.Journal of clinical epidemiology · 2025Article
- Estimating dementia prevalence using remote diagnoses and algorithmic modelling: a population-based study of a rural region in South Africa.The Lancet. Global health · 2024Article
- Age differences in the change in cognition after stroke.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2024Article
- Lifetime occupational skill and later-life cognitive function among older adults in the United States, Mexico, India, and South Africa.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- Type II diabetes and cognitive function among older adults in India and China-results from Harmonized Cognitive Assessment Protocol studies.Frontiers in public health · 2024Article
- Does education moderate gender disparities in later-life memory function? A cross-national comparison of harmonized cognitive assessment protocols in the United States and India.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Article
- Speech and language markers of neurodegeneration: a call for global equity.Brain : a journal of neurology · 2023Review
- Assessing cognitive function in longitudinal studies of ageing worldwide: some practical considerations.Age and ageing · 2023Review
- Harmonisation of later-life cognitive function across national contexts: results from the Harmonized Cognitive Assessment Protocols.The lancet. Healthy longevity · 2023Article
- Negative wealth shocks in later life and subsequent cognitive function in older adults in China, England, Mexico, and the USA, 2012-18: a population-based, cross-nationally harmonised, longitudinal study.The lancet. Healthy longevity · 2023Article
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Authors and funding
19 authors.
Funding
Abstract
backgroundAs global populations age, cross-national comparisons of cognitive health and dementia risk are increasingly valuable. It remains unclear, however, whether country-level differences in cognitive function are attributable to population differences or bias due to incommensurate measurement. To demonstrate an effective method for cross-national comparison studies, we aimed to statistically harmonize measures of episodic memory and language function across two population-based cohorts of older adults in the United States (HRS HCAP) and India (LASI-DAD).
methodsData for 3,496 HRS HCAP (≥65 years) and 3,152 LASI-DAD (≥60 years) participants were statistically harmonized for episodic memory and language performance using confirmatory factor analysis (CFA) methods. Episodic memory and language factor variables were investigated for differential item functioning (DIF) and precision.
resultsCFA models estimating episodic memory and language domains based on a priori adjudication of comparable items fit the data well. DIF analyses revealed that four out of ten episodic memory items and five out of twelve language items measured the underlying construct comparably across samples. DIF-modified episodic memory and language factor scores showed comparable patterns of precision across the range of the latent trait for each sample.
conclusionsHarmonization of cognitive measures will facilitate future investigation of cross-national differences in cognitive performance and differential effects of risk factors, policies, and treatments, reducing study-level measurement and administrative influences. As international aging studies become more widely available, advanced statistical methods such as those described in this study will become increasingly central to making universal generalizations and drawing valid conclusions about cognitive aging of the global population.
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