The Harmonized Cognition Assessment Protocol (HCAP) involves in-depth measurement of cognition of SHARE respondents in a selection of European countries and a short interview with someone close to a respondent (family or friend).
HCAP is part of an ongoing international research collaboration funded by the National Institute on Aging to measure and understand which interactions of bio-medical and socio-economic conditions over the life course affect cognition in later life. Many ongoing longitudinal studies of aging around the world are part of this global initiative and have aimed to harmonize methods and content to facilitate cross-national comparisons.
