The present study searched for evidence of validity between the R1- Teste não-verbal de inteligência and the Teste Conciso de Raciocínio, whose manuals indicate to measure the g factor, and both developed for people which intend to obtain their driver licenses. 65 volunteers, aged from 18 to 48 years (M=24.36), participating in the process for driver licenses were studied. The correlation coefficients make possible to infer that a substantial part of the variance of both the tests was common, indicating that they would measure a high amount of the same psychological mechanism. Thus, it was possible to consider that this relation was suggestive of an evidence of construct validity. Finally, it was evidenced that the R1 discriminated only for the range from 20 to 40 scores, and the TCR, however, provided a distribution in all its range.