The three-step Parsonian approach has lasted more than a century and paved the foundation to the modern career counselling, which emphasized the importance of knowing the self, the environment, and "true reasoning". The use of assessments remains as an integral part of career counselling. Therefore, the current study aims to carefully reevaluates the tenets of the Parsonian approach to better support evidence-based career counselling interventions by exploring the predictive roles of (1) decisional procrastination on career decision-making difficulties (CDD), (2) career exploration on CDD, and (3) career decision self-efficacy on CDD among the final-year undergraduates of Malaysian universities. Subsequently, the mediation models of (1) career decision self-efficacy on decisional procrastination and CDD and (2) career decision self-efficacy on career exploration and CDD were included in this study. 203 final-year undergraduates were recruited with two-stage stratified sampling for the present exploratory study using survey method. The findings revealed that decisional procrastination and career exploration were significant positive predictors for CDD, whereas career decision self-efficacy served as a significant negative predictor. Moreover, career decision self-efficacy was found to significantly mediate the relationship on decisional procrastination and CDD and the relationship on career exploration and CDD. In addition, the present study further consolidated the importance of emphasizing the role of career decision self-efficacy in the intervention of career counselling. Notably, the career exploration was found to be a positive predictor of CDD, the implications of over reliance on the career exploration in career counselling is discussed. [For the complete proceedings, see ED672804.]