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The Wechsler abbreviated scale of intelligence (WASI) was developed to rapidly assess intelligence, providing Verbal, Performance, and Full Scale IQ scores. This study aimed to investigate whether part of the standardization sample data from the Brazilian version of the instrument fits the two-factor model. Confirmatory factor analysis was conducted with data from 534 participants, average age 28.78 years (SD=22.07), and 51.5% female. The analyses were performed considering the total sample, the children and adolescents sample and the adult sample. Results indicate that the two-factor model fits the analyzed sample. Considerations are presented regarding the internal validity and conceptual proposal of the instrument. [ABSTRACT FROM AUTHOR]