ArticleThe journals of gerontology. Series B, Psychological sciences and social sciences2026
The measurement of cognition in large-scale cross-national surveys: lessons from the Health and Retirement Study International Network of Studies and the Harmonized Cognitive Assessment Protocol.
Article in The journals of gerontology. Series B, Psychological sciences and social sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
4 citing papers in PubMed.
- Recommended contents for a longitudinal, population-representative study of health, retirement, and aging.The journals of gerontology. Series B, Psychological sciences and social sciences · 2026Article
- NIA perspective on harmonizing International Health and Retirement Studies (HRS) and Harmonized Cognitive Assessment Protocol (HCAP) studies.The journals of gerontology. Series B, Psychological sciences and social sciences · 2026Article
- Introduction: Harmonization Recommendations from the Gateway to Global Aging Data.The journals of gerontology. Series B, Psychological sciences and social sciences · 2026Article
- Verbal fluency after cochlear implantation: a longitudinal comparison with untreated hearing loss in the ELSA cohort.Frontiers in neuroscience · 2026Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
objectivesGlobal dementia prevalence is expected to triple by 2050 with the majority of cases occurring in low- and middle-income countries (LMICs), prompting the need for robust cognitive measurement tools in global aging research. The Health and Retirement Study (HRS) and its international counterparts have pioneered cross-national cognitive assessments, most recently through the Harmonized Cognitive Assessment Protocol (HCAP).
methodsBased on a series of discussions with key stakeholders and a review of the current literature, we report on key lessons from the HRS International Network of Surveys (HRS-INS) and HCAP in developing cross-nationally comparable cognitive testing protocols suitable for longitudinal research.
resultsThese lessons emphasize the importance of ensuring tests are feasible across both high-income countries and LMICs, maintaining consistency within studies and over time, and designing comprehensive cognitive batteries for improved measurement precision of general and domain-specific phenotypes. We highlight challenges of administering cognitive tests across different cultural, educational, and linguistic contexts, which necessitate ongoing adaptation and pilot testing. DISCUSSION: By summarizing these experiences, this article informs future efforts in enhancing the comparability and validity of cognitive assessments for cross-national aging studies, providing insights into optimizing survey design for the accurate measurement of cognitive functioning, cognitive decline, mild cognitive impairment, and dementia. Insights also enable data users to identify the limitations of existing data, thus facilitating more informed decision-making in analytic projects.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.