This study aims to analyze the role of Critical Problem-Solving Ability (CPSA) in mediating the influence of soft skills on the academic achievement of students enrolled in the Mathematics Education Study Program, Faculty of Teacher Training and Education (FKIP), University of Islam Malang (UNISMA). This research employs a quantitative approach with an explanatory-predictive survey design and path analysis technique using Partial Least Squares Structural Equation Modeling (PLS-SEM) via SmartPLS4 software. The sample consists of 99 students from the 3rd, 5th, and 7th semesters, selected using a convenient sampling technique. The research instruments include a standardized questionnaire and semester academic index (SAI) documents. The results show that certain soft skills variables, such as Adaptability and Flexibility (ADAF), Effective Communication Skills (ECS), and Independence and Self-Discipline (ISD), have a significant direct effect on CPSA. Additionally, ECS and ADAF also have a direct effect on SAI. CPSA was proven to have a direct effect on SAI and to serve as a significant mediator in the relationship between ADAF and ECS with SAI. However, no significant indirect effects were found from Collaboration and Teamwork Skills (CTS), Emotional Intelligence (EQ), and ISD on SAI through CPSA.
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