%0 Journal Article
%T Evaluating Language Comprehension in Alzheimer's disease: the use of the Token Test
%A Paula
%A Jonas Jardim de
%A Bertola
%A Laiss
%A Nicolato
%A Rodrigo
%A Moraes
%A Edgar Nunes de
%A Malloy-Diniz
%A Leandro Fernandes
%J Arquivos de Neuro-Psiquiatria
%D 2012
%I Academia Brasileira de Neurologia - ABNEURO
%R 10.1590/S0004-282X2012000600010
%X objective: to analyze the psychometric properties of the token test (tt), a verbal comprehension test, and its applicability to the diagnosis of mild alzheimer's disease (ad). methods: one hundred and sixty participants (80 ad and 80 controls) performed the tt and a short battery of neuropsychological tests designed to evaluate general cognitive status, working memory and executive functions. internal consistency, factor structure, correlation with other measures and group comparisons were evaluated. results: the test evinced good internal consistency and a bi-factorial structure (related to comprehension and attention). differences between ad and controls were significant, however the tt presented only moderate sensitivity and specificity for the ad diagnosis. conclusion: the tt showed evidence of good psychometric properties and adequacy for characterizing comprehension deficits in ad, but it was not an appropriate test for the ad detection and diagnosis.
%K token test
%K psychometric properties
%K language
%K alzheimer disease.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0004-282X2012000600010&lng=en&nrm=iso&tlng=en