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28 Factor Structure of Conventional Neuropsychological Tests and NIH-Toolbox in Healthy Older Adults

Published online by Cambridge University Press:  21 December 2023

Kailey Langer*
Affiliation:
University of Florida, Gainesville, FL, USA.
Cheshire Hardcastle
Affiliation:
University of Florida, Gainesville, FL, USA.
Hanna Hausman
Affiliation:
University of Florida, Gainesville, FL, USA.
Jessica Kraft
Affiliation:
University of Florida, Gainesville, FL, USA.
Alejandro Albizu
Affiliation:
University of Florida, Gainesville, FL, USA.
Nicole Evangelista
Affiliation:
University of Florida, Gainesville, FL, USA.
Emanuel Boutzoukas
Affiliation:
University of Florida, Gainesville, FL, USA.
Andrew O’Shea
Affiliation:
University of Florida, Gainesville, FL, USA.
Emily Van Etten
Affiliation:
University of Arizone, Tuscon, AZ, USA
Samantha Smith
Affiliation:
University of Arizone, Tuscon, AZ, USA
Hyun Song
Affiliation:
University of Arizone, Tuscon, AZ, USA
Pradyumna Bharadwaj
Affiliation:
University of Arizone, Tuscon, AZ, USA
Georg Hishaw
Affiliation:
University of Arizone, Tuscon, AZ, USA
Samuel Wu
Affiliation:
University of Florida, Gainesville, FL, USA.
Steven DeKosky
Affiliation:
University of Florida, Gainesville, FL, USA.
Gene Alexander
Affiliation:
University of Arizone, Tuscon, AZ, USA
Eric Porges
Affiliation:
University of Florida, Gainesville, FL, USA.
Michael Marsiske
Affiliation:
University of Florida, Gainesville, FL, USA.
Ronald Cohen
Affiliation:
University of Florida, Gainesville, FL, USA.
Adam Woods
Affiliation:
University of Florida, Gainesville, FL, USA.
*
Correspondence: Kailey Langer, University of Florida, [email protected]
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Abstract

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Objective:

The National Institutes of Health-Toolbox cognition battery (NIH-TCB) is widely used in cognitive aging studies and includes measures in cognitive domains evaluated for dimensional structure and psychometric properties in prior research. The present study addresses a current literature gap by demonstrating how NIH-TCB integrates into a battery of traditional clinical neuropsychological measures. The dimensional structure of NIH-TCB measures along with conventional neuropsychological tests is assessed in healthy older adults.

Participants and Methods:

Baseline cognitive data were obtained from 327 older adults. The following measures were collected: NIH-Toolbox cognitive battery, Controlled Oral Word Association (COWA) letter and animals tests, Wechsler Test of Adult Reading (WTAR), Stroop Color-Word Interference Test, Paced Auditory Serial Addition Test (PASAT), Brief Visuospatial Memory Test (BVMT), Letter-Number Sequencing (LNS), Hopkins Verbal Learning Test (HVLT), Trail Making Test A&B, Digit Span. Hmisc, psych, and GPARotation packages for R were used to conduct exploratory factor analyses (EFA). A 5-factor solution was conducted followed by a 6-factor solution. Promax rotation was used for both EFA models.

Results:

The 6-factor EFA solution is reported here. Results indicated the following 6 factors: working memory (Digit Span forward, backward, and sequencing, PASAT trials 1 and 2, NIH-Toolbox List Sorting, LNS), speed/executive function (Stroop color naming, word reading, and color-word interference, NIH-Toolbox Flanker, Dimensional Change, and Pattern Comparison, Trail Making Test A&B), verbal fluency (COWA letters F-A-S), crystallized intelligence (WTAR, NIH-Toolbox Oral Recognition and Picture Vocabulary), visual memory (BVMT immediate and delayed), and verbal memory (HVLT immediate and delayed. COWA animals and NIH-Toolbox Picture Sequencing did not adequately load onto any EFA factor and were excluded from the subsequent CFA.

Conclusions:

Findings indicate that in a sample of healthy older adults, these collected measures and those obtained through the NIH-Toolbox battery represent 6 domains of cognitive function. Results suggest that in this sample, picture sequencing and COWA animals did not load adequately onto the factors created from the rest of the measures collected. These findings should assist in interpreting future research using combined NIH-TCB and neuropsychological batteries to assess cognition in healthy older adults.

Type
Poster Session 08: Assessment | Psychometrics | Noncredible Presentations | Forensic
Copyright
Copyright © INS. Published by Cambridge University Press, 2023