TY - JOUR
T1 - A New Standard in Dementia Knowledge Measurement
T2 - Comparative Validation of the Dementia Knowledge Assessment Scale and the Alzheimer's Disease Knowledge Scale
AU - Annear, Michael J.
AU - Eccleston, Claire E.
AU - McInerney, Frances J.
AU - Elliott, Kate Ellen J.
AU - Toye, Christine M.
AU - Tranter, Bruce K.
AU - Robinson, Andrew L.
N1 - Publisher Copyright:
© 2016, Copyright the Authors Journal compilation © 2016, The American Geriatrics Society.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016/6/1
Y1 - 2016/6/1
N2 - Objectives: To 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.
AB - Objectives: To 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.
KW - dementia
KW - knowledge scales
KW - psychometric assessment
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U2 - 10.1111/jgs.14142
DO - 10.1111/jgs.14142
M3 - Article
C2 - 27321614
AN - SCOPUS:84975268140
VL - 64
SP - 1329
EP - 1334
JO - Journal of the American Geriatrics Society
JF - Journal of the American Geriatrics Society
SN - 0002-8614
IS - 6
ER -