PASQUALI, Luiz    ARAUJO, Robson M. de. Differential aptitude battery: preliminary validation for Brazil. []. , 6, 3, pp.271-290. ISSN 1413-389X.

The Differential Aptitude Battery (BRD) was built by Leandro S. Almeida em 1982, based on the Belgian "Tests de Raisonnement Différentiel". The BRD is composed of five scales: Numeric Reasoning (30 items), Abstract Reasoning (35 items), Verbal Reasoning (40 items), Spatial Reasoning (30 items), and Mechanical Reasoning (44 items); they are ali correlated, suggesting a second order factor, identified as the factor g. With data collected from 629 subjects from Brasília (DF, Brazil), both sexes and age averaging 27,2 years, was performed a factor analysis of each scale, showing basic unidimensionality; items were analyzed through the three parameters logistic model of IRT. Scales also showed high internai consistency (Cronbacrfs alpha), ranging from .80 through .92. The characteristic curves of the scales showed that they are particularly useful to measure aptitudes between -2 and +2 z

: intelligence; psychometrics; IRT.

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