Harmonisation of later-life cognitive function across national contexts: results from the Harmonized Cognitive Assessment Protocols.

ABSTRACT:

Background

The Harmonized Cognitive Assessment Protocol (HCAP) is an innovative instrument for cross-national comparisons of later-life cognitive function, yet its suitability across diverse populations is unknown. We aimed to harmonise general and domain-specific cognitive scores from HCAP studies across six countries, and evaluate reliability and criterion validity of the resulting harmonised scores.

Methods

We statistically harmonised general and domain-specific cognitive function scores across publicly available HCAP partner studies in China, England, India, Mexico, South Africa, and the USA conducted between October, 2015 and January, 2020. Participants missing all cognitive test items in a given HCAP were excluded. We used an item banking approach that leveraged common

SUBMITTER: Gross AL 

PROVIDER: S-EPMC10637129 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature