The present research aims to validate the Sternberg-Wagner Questionnaire of Thinking Styles, in order to have a clear and precise scale that adjusts to the Peruvian reality. Robert Sternberg, the creator of the Mental Self-Governance model, is one of the main promoters of the renovating movement of the study of human intelligence as seen from modern cognitive psychology, and his scientific contributions have focused on the creation of a new method and approach for the understanding of human intelligence. Given the complexity of his theoretical proposal, three new directions in the investigation of intelligence and cognitive styles could be basically derived from the present study. First, to have a clear and integrated conception of intelligence with valid instruments to measure it. Second, to review and properly manage the instruments that measure intelligence, aptitudes and styles. Third, develop new teaching and assessment strategies that fit the styles of students and professionals in the workplace.