Investigation of cognition in schizophrenia: Psychometric properties of instruments for assessing working memory updating Investigação da cognição na esquizofrenia: Propriedades psicométricas de instrumentos para avaliação de atualização da memória de trabalho

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dc.contributor.authorBerberian A.A.
dc.contributor.authorGadelha A.
dc.contributor.authorDias N.M.
dc.contributor.authorMecca T.P.
dc.contributor.authorBressan R.A.
dc.contributor.authorLacerda A.T.
dc.date.accessioned2024-03-13T00:56:55Z
dc.date.available2024-03-13T00:56:55Z
dc.date.issued2015
dc.description.abstract© 2015 Editora Cientifica Nacional Ltda. All rights reserved.Objective: This study describes the development of two updating measures of working memory (WM): Letter Updating Test (LUT) and Word Updating Test (WUT). Methods: In stage 1, items were created and the instruments were assessed by experts and laymen. In stage 2, tests were given to 15 patients with schizophrenia and 15 paired controls. All were able to understand and respond to the instruments. In stage 3, 141 patients with schizophrenia and 119 healthy controls aged 18 to 60 took part; they were assessed on WM, processing speed (PS) and functional outcome. Results: The results showed adequate rates of internal consistency for both measures developed, for both the total sample and each group separately, as well as evidence of convergent validity, discriminant validity and sensitivity to differentiate performance among the groups. Principal component analysis yielded two components, one for updating tests and other for PS measures, indicating factorial validity. Positive and significant, yet low, correlations were found with functionality measures. Conclusion: These results provide adequate psychometric parameters for the measures developed, applicable to cognitive research settings in schizophrenia.
dc.description.firstpage238
dc.description.issuenumber3
dc.description.lastpage246
dc.description.volume64
dc.identifier.doi10.1590/0047-2085000000084
dc.identifier.issn1982-0208
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/36182
dc.relation.ispartofJornal Brasileiro de Psiquiatria
dc.rightsAcesso Aberto
dc.subject.otherlanguageCognition
dc.subject.otherlanguageNeuropsychology
dc.subject.otherlanguageSchizophrenia
dc.subject.otherlanguageUpdating
dc.subject.otherlanguageWorking memory
dc.titleInvestigation of cognition in schizophrenia: Psychometric properties of instruments for assessing working memory updating Investigação da cognição na esquizofrenia: Propriedades psicométricas de instrumentos para avaliação de atualização da memória de trabalho
dc.typeArtigo
local.scopus.citations4
local.scopus.eid2-s2.0-84947918018
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84947918018&origin=inward
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