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A new standard in dementia knowledge measurement: comparative validation of the Dementia Knowledge Assessment Scale and the Alzheimer’s Disease Knowledge Scale

Citation

Annear, MJ and Eccleston, CE and McInerney, FJ and Elliott, K-EJ and Toye, CM and Tranter, BK and Robinson, AL, A new standard in dementia knowledge measurement: comparative validation of the Dementia Knowledge Assessment Scale and the Alzheimer's Disease Knowledge Scale, Journal of the American Geriatrics Society, 64, (6) pp. 1329-1334. ISSN 1532-5415 (2016) [Refereed Article]

Copyright Statement

© 2016 Copyright the Authors

DOI: doi:10.1111/jgs.14142

Abstract

Objectives: TTo compare the psychometric performance of the Dementia Knowledge Assessment Scale (DKAS) and the Alzheimer's Disease Knowledge Scale (ADKS) when administered to a large international cohort before and after online dementia education.

Design: Comparative psychometric analysis with pre- and posteducation scale responses.

Setting: The setting for this research encompassed 7,909 individuals from 124 countries who completed the 9-week Understanding Dementia Massive Open Online Course (MOOC).

Participants: Volunteer respondents who completed the DKAS and ADKS before (n = 3,649) and after (n = 878) completion of the Understanding Dementia MOOC.

Measurements: Assessment and comparison of the DKAS and ADKS included evaluation of scale development procedures, interscale correlations, response distribution, internal consistency, and construct validity.

Results: The DKAS had superior internal consistency, wider response distribution with less ceiling effect, and better discrimination between pre- and posteducation scores and occupational cohorts than the ADKS.

Conclusion: The 27-item DKAS is a reliable and preliminarily valid measure of dementia knowledge that is psychometrically and conceptually sound, overcomes limitations of existing instruments, and can be administered to diverse cohorts to measure baseline understanding and knowledge change.

Item Details

Item Type:Refereed Article
Keywords:dementia, knowledge scales, psychometric assessment
Research Division:Medical and Health Sciences
Research Group:Public Health and Health Services
Research Field:Aged Health Care
Objective Division:Health
Objective Group:Other Health
Objective Field:Health not elsewhere classified
Author:Annear, MJ (Dr Michael Annear)
Author:Eccleston, CE (Dr Claire Eccleston)
Author:McInerney, FJ (Professor Fran McInerney)
Author:Elliott, K-EJ (Dr Kate-Ellen Elliott)
Author:Toye, CM (Associate Professor Christine Toye)
Author:Tranter, BK (Professor Bruce Tranter)
Author:Robinson, AL (Professor Andrew Robinson)
ID Code:112669
Year Published:2016
Web of Science® Times Cited:1
Deposited By:Wicking Dementia Research and Education Centre
Deposited On:2016-11-23
Last Modified:2017-11-07
Downloads:0

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