Parâmetros psicométricos do Teste de Arrumação do Armário

Abstract

Working memory (WM) is an importante cognitive function and a deficit in this function is a characteristic for many clinical and preclinical conditions. An appropriate validation process is essential for the adequacy and interpretation of an instrument. The objective is to verify as psychometric properties of the Wardrobe Arrangement Test (TAA), a test for evaluating visuospatial working memory. Evidence of validity for TAA was presented. Content validity, with analysis of judges, using content validity index (CVI) and Cohen Kappa coefficient. An exploratory factor analysis was performed to verify the quality and item-factor correlation, and a confirmatory factor analysis to verify the adjust of the model. A Pearson Bayesian correlation was performed to verify the convergent validity of the TAA with the Corsi Block Tapping Test and the discriminant validity with the Five Digit Test (FDT). The CVI presented a result of 0.98 and the Cohen Kappa coefficient was 1.00, indicating an agreement level above the cutoff used. An exploratory factor analysis grouped the items into one factor, with a discrimination value above 1.00 for all items. A total correlation item shows values above 0.30, indicating a good correlation between the factors. A confirmatory factor analysis shows adequate fit indexes (GFI = 0.96; CFI = 0.99; NFI = 0.95; RMSEA = 0.04) for the 1-factor model. For discriminant validity, a correlation between TAA and FDT has correlation values that may be insignificant to low negatives (minimum of -0.253 and maximum of -0.366), indicating a low correlation between the instruments. For convergent validity, a correlation between TAA and an inverse order of Corsi Block Tapping Test was considered moderate positive (r = 0.502), indicating a fair correlation between the instruments. These correlations were considered decisive by their bayes factor (log (BF10)> 2). These results shows that the TAA has appropriates psychometric properties, indicating that TAA is an alternative for evaluating the visuospatial binding of the WM from an ecological characteristics perspective.