This study aimed to evaluate the changes achieved by the participants of a pilot career choice intervention that addressed the critical components defined in the empirical research: counselor support, clarification of values, and psychoeducation. The clarification of values is specified as the main component of the intervention, which was approached with tools and procedures from Acceptance and Commitment Therapy (ACT). A single group design (n = 11) was carried out with mixed methodology. The participants were students of the Academic Baccalaureate Program of the University of Chile. Three measurements were made (before the intervention, after it, and one month after the intervention) through outcome measures: Self-efficacy in Career Decision Making and Indecision in career choice. At the end of the intervention, a focus group was held to know the experience of the participants. The intervention was shown to increase Self-efficacy levels in Career Decision Making and decrease Indecision in career choice.