Psychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach.

The Addenbrooke's Cognitive Examination III is one of the most widely used tests to assess cognitive impairment. Although previous studies have shown adequate levels of diagnostic utility to detect severe impairment, it has not shown sensitivity to detect mild decline. The aim of this study was...

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Autores principales:	Carlos Calderón, Christian Beyle, Oscar Véliz-García, Juan Bekios-Calfa
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0fbb137ced7f46dc8104a7ef2316512b
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spelling	oai:doaj.org-article:0fbb137ced7f46dc8104a7ef2316512b2021-11-25T06:19:17ZPsychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach.1932-620310.1371/journal.pone.0251137https://doaj.org/article/0fbb137ced7f46dc8104a7ef2316512b2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251137https://doaj.org/toc/1932-6203The Addenbrooke's Cognitive Examination III is one of the most widely used tests to assess cognitive impairment. Although previous studies have shown adequate levels of diagnostic utility to detect severe impairment, it has not shown sensitivity to detect mild decline. The aim of this study was to evaluate the psychometric properties of Addenbrooke's Cognitive Examination III in a large sample of elderly people through Item Response Theory, due to the lack of studies using this approach. A cross-sectional study was conducted with 1164 people from the age of 60 upwards, of which 63 had a prior diagnosis of Alzheimer dementia. The results showed that, globally, the Addenbrooke's Cognitive Examination III possesses adequate psychometrics properties. Furthermore, the information function test shows that the subscales have different sensitivity to different levels of impairment. These results can contribute to determining patterns of cognitive deterioration for the adequate detection of different levels of dementia. An optimized version is suggested which may be an economic alternative in the applied field.Carlos CalderónChristian BeyleOscar Véliz-GarcíaJuan Bekios-CalfaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251137 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Carlos Calderón Christian Beyle Oscar Véliz-García Juan Bekios-Calfa Psychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach.
description	The Addenbrooke's Cognitive Examination III is one of the most widely used tests to assess cognitive impairment. Although previous studies have shown adequate levels of diagnostic utility to detect severe impairment, it has not shown sensitivity to detect mild decline. The aim of this study was to evaluate the psychometric properties of Addenbrooke's Cognitive Examination III in a large sample of elderly people through Item Response Theory, due to the lack of studies using this approach. A cross-sectional study was conducted with 1164 people from the age of 60 upwards, of which 63 had a prior diagnosis of Alzheimer dementia. The results showed that, globally, the Addenbrooke's Cognitive Examination III possesses adequate psychometrics properties. Furthermore, the information function test shows that the subscales have different sensitivity to different levels of impairment. These results can contribute to determining patterns of cognitive deterioration for the adequate detection of different levels of dementia. An optimized version is suggested which may be an economic alternative in the applied field.
format	article
author	Carlos Calderón Christian Beyle Oscar Véliz-García Juan Bekios-Calfa
author_facet	Carlos Calderón Christian Beyle Oscar Véliz-García Juan Bekios-Calfa
author_sort	Carlos Calderón
title	Psychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach.
title_short	Psychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach.
title_full	Psychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach.
title_fullStr	Psychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach.
title_full_unstemmed	Psychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach.
title_sort	psychometric properties of addenbrooke's cognitive examination iii (ace-iii): an item response theory approach.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/0fbb137ced7f46dc8104a7ef2316512b
work_keys_str_mv	AT carloscalderon psychometricpropertiesofaddenbrookescognitiveexaminationiiiaceiiianitemresponsetheoryapproach AT christianbeyle psychometricpropertiesofaddenbrookescognitiveexaminationiiiaceiiianitemresponsetheoryapproach AT oscarvelizgarcia psychometricpropertiesofaddenbrookescognitiveexaminationiiiaceiiianitemresponsetheoryapproach AT juanbekioscalfa psychometricpropertiesofaddenbrookescognitiveexaminationiiiaceiiianitemresponsetheoryapproach
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Psychometric properties of Addenbrooke's Cognitive Examination III (ACE-III): An item response theory approach.

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