| Title: |
Development and Validation of Response Time Inconsistency in the Midlife in the United States (MIDUS) Study |
| Authors: |
Stawski, Robert; Cerino, Eric; Witzel, Dakota; Lachman, Margie; MacDonald, Stuart |
| Source: |
Innovation in Aging ; volume 9, issue Supplement_2 ; ISSN 2399-5300 |
| Publisher Information: |
Oxford University Press (OUP) |
| Publication Year: |
2025 |
| Description: |
Response time inconsistency (RTI), the trial-to-trial variability on a RT-based cognitive task, is an important behavioral indicator of cognitive health, cognitive aging, and an early indicator of cognitive pathology, and central nervous system (CNS) dysfunction. Although RTI is well-studied through computer-based speeded tasks, little research has examined the validity of RTI obtained from: (1) telephone-based cognitive assessments employing voice-triggered response time protocols; or (2) midlife cohorts who are at risk for dementia. Using data from the second wave of the MIDUS study (N = 4,285; Mage=55.6, SD = 12.2, Range=28-84; 55%=women; 75% having at least some college education), participants completed the Brief Test of Adult Cognition via Telephone (BTACT), which includes tests of executive function and episodic memory abilities, as well as a RT-based stop-go switching (SGS) task. RTI was derived from 20 trials of the SGS non-switch condition and quantified as an intraindividual standard deviation (ISD) residualized for trial number. RTI was greater with age (r=.26, p |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| DOI: |
10.1093/geroni/igaf122.2407 |
| Availability: |
https://doi.org/10.1093/geroni/igaf122.2407; https://academic.oup.com/innovateage/article-pdf/9/Supplement_2/igaf122.2407/66234379/igaf122.2407.pdf |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.C777BB77 |
| Database: |
BASE |