The study aims at validating the Career Decision-Making Adaptability Score (CDA Score) by investigating its predictive influence on objective and subjective career success, career adaptability, and psychological well-being over a 1-year period. Furthermore, the predictive influence of additional career decision-making strategies was scrutinized. Regression analyses of data from 78 employed individuals from two measurement time points demonstrated that the CDA Score predicts yet unexplored variables (e.g., psychological well-being) and "consulting with others" contributes to career adaptability and satisfaction. The findings extend research on career decision-making, validate the CDA Score longitudinally, and offer directions for the design of career counseling services.