# Health and Retirement Study: Harmonized Cognitive Assessment Protocol (HCAP)

> **NIH NIH U01** · UNIVERSITY OF MICHIGAN AT ANN ARBOR · 2020 · $390,038

## Abstract

PROJECT SUMMARY/ABSTRACT
 The primary aim of the Health and Retirement Study (HRS) cooperative agreement is to collect and
distribute multi-disciplinary data to support research on aging. Cognitive impairment and dementia, including
Alzheimer's disease and Alzheimer's disease related dementias (AD/ADRD), impose enormous burdens on
families and government policies. To provide the research community with new and richer data to study the
prevalence, predictors, and outcomes of cognitive impairment and dementia, we undertook the HRS
Harmonized Cognitive Assessment Protocol (HCAP) Study during the HRS 2016 field period, in which we
administered a supplemental in-home 1-hour battery of cognitive tests to about 3,200 randomly selected and
nationally representative HRS respondents aged 65+, as well as a 20-minute informant interview. In the
proposed HCAP 2020 follow-up study, we will re-administer the same HCAP in-home cognitive assessment
and informant report to all surviving members of the original HCAP sample (n ~ 2,250), and to a new random
sample of those aged 65 to 68 in 2020 (n ~ 720). The HCAP 2020 follow-up study will provide extensive new
data to better assess trajectories of cognitive decline among older US adults, including the incidence of new
cognitive impairment and dementia. These data will also provide an unprecedented opportunity to better
understand trends in the incidence and prevalence of dementia in the US and around the world.

## Key facts

- **NIH application ID:** 10191463
- **Project number:** 3U01AG058499-03S1
- **Recipient organization:** UNIVERSITY OF MICHIGAN AT ANN ARBOR
- **Principal Investigator:** KENNETH M LANGA
- **Activity code:** U01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2020
- **Award amount:** $390,038
- **Award type:** 3
- **Project period:** 2018-01-01 → 2021-12-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10191463

## Citation

> US National Institutes of Health, RePORTER application 10191463, Health and Retirement Study: Harmonized Cognitive Assessment Protocol (HCAP) (3U01AG058499-03S1). Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/grant/nih/10191463. Licensed CC0.

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