This study sought to design and evaluate a vocational preference test for Business Administration, Materials Engineering and Biotechnology Engineering majors at the Instituto Tecnológico de Costa Rica (ITCR). For this goal, first of all a vocational profile of each career was constructed, from which the test items were written. 480 students took part, with an average age of 22.07 years, 53.19% of them women and 46.81% men. Descriptions of the profile of each career were collected by students and teachers, and later analyzed by expert groups. From the defined profile, items were drawn up and later evaluated with factor analysis, for the selection of the items, obtaining adequate indicators of goodness of fit. The vocational test includes three factors: Skills, Interests and Vocational Tasks. In turn, the Skills scale evaluated six areas: Mathematics, Chemistry, Physics, Biology, Leadership and Self-regulationdiscipline. For its part, the scale of preferences contemplated the three areas evaluated: Administration, Materials and Biotechnology. On the other hand, there were differences according to sex, major and level of vocational satisfaction.La orientación vocacional es un proceso de educación para la vida profesional. Implica la toma de decisiones autónoma con visualización a futuro del rol social (Cepero, 2009;Müller, 1992) y el análisis de las opciones profesionales (carreras, ocupaciones y demanda laboral) en concordancia con las características personales: intereses, habilidades y preferencias (Bohoslavsky, 1984).En el proceso de toma de decisiones vocacionales intervienen variedad de factores tales como la orientación y la seguridad vocacional, la condición social, la demanda laboral, las destrezas ocupacionales, el colegio de procedencia y el prestigio social de la carrera; los intereses, las preferencias y el sexo constituyen las más relevantes (