Functional assessment and neuropsychiatric inventory questionnaires: measurement invariance across Hispanic and non-Hispanic whites

Sayegh, Philip and Knight, Bob G. (2014) Functional assessment and neuropsychiatric inventory questionnaires: measurement invariance across Hispanic and non-Hispanic whites. The Gerontologist, 54 (3). pp. 375-386. ISSN 0016-9013

Abstract

Purpose of the Study: We tested the ethnic-group measurement invariance of 2 commonly used informant-report scales of patients’ dementia symptoms: the Functional Assessment Questionnaire (FAQ), a measure of functional abilities, and the Neuropsychiatric Inventory Questionnaire (NPI-Q), a measure of behavioral and psychological symptoms of dementia.
Design and Methods: We conducted multigroup confirmatory factor analyses on 311 Hispanic and 10,863 non-Hispanic White (NHW) outpatients and their informants diagnosed with dementia or normal cognition at their initial Alzheimer’s Disease Center evaluations nationwide.
Results: We confirmed our hypothesized one-factor FAQ and four-factor NPI-Q models for each ethnic group. We also found evidence for the configural (i.e., number of factors) and factorial (i.e., pattern of factor loadings) invariance of both scales and structural (i.e., factor covariances) invariance of the NPI-Q across groups. However, we did not obtain evidence for ethnic-group scalar (i.e., intercept) invariance for either scale.
Implications: The FAQ and NPI-Q were operating similarly across Hispanics and NHWs, suggesting that they can be meaningfully used within and across these groups to measure informant-reported dementia symptomatology. However, their scalar noninvariance indicates that meaningful ethnic-group comparisons of their latent factor mean values cannot be made.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version due to publisher's copyright policy.
Faculty / Department / School: Historic - Faculty of Health, Engineering and Sciences - School of Psychology, Counselling and Community
Date Deposited: 11 Jan 2016 23:50
Last Modified: 16 Feb 2017 05:38
Uncontrolled Keywords: factor analysis; ethnicity; Latino/a; dementia; informant reports
Fields of Research : 11 Medical and Health Sciences > 1103 Clinical Sciences > 110308 Geriatrics and Gerontology
11 Medical and Health Sciences > 1103 Clinical Sciences > 110319 Psychiatry (incl. Psychotherapy)
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970117 Expanding Knowledge in Psychology and Cognitive Sciences
Identification Number or DOI: 10.1093/geront/gnt026
URI: http://eprints.usq.edu.au/id/eprint/28200

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