Item-level psychometrics of the Ascertain Dementia Eight-Item Informant Questionnaire.

The aim of this study is to evaluate the item-level psychometrics of the Ascertain Dementia Eight-Item Informant Questionnaire (AD-8) by examining its dimensionality, rating scale integrity, item fit statistics, item difficulty hierarchy, item-person match, and precision. We used confirmatory factor...

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Bibliographic Details
Main Authors: Yeajin Ham, Suyeong Bae, Heerim Lee, Yaena Ha, Heesu Choi, Ji-Hyuk Park, Hae Yean Park, Ickpyo Hong
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0270204