This study evaluates the validity of the Project-Based Problem Learning (PBPL) Model Book designed for higher education settings. The primary objective is to assess the model's content validity by applying Aiken's V, focusing on critical aspects such as Content, Language, Structure and Organization. To achieve this, a panel of experts with relevant expertise in education reviewed the PBPL Model Book. Their evaluations were then subjected to rigorous statistical analysis using Partial Least Squares Structural Equation Modeling (PLS-SEM), a technique that ensures the robustness and reliability of the validation process. The findings revealed that the average Aiken's V values for each category significantly exceeded the 0.85 threshold, which confirms the model's high validity and appropriateness for educational purposes. The methodological approach of this study is notable for its integration of expert judgment with advanced statistical validation techniques. This combination of qualitative and quantitative methods provides a comprehensive assessment of the PBPL Model Book's alignment with established educational standards. The results indicate that the model effectively incorporates project-based and problem-based learning principles, offering a structured and systematic framework designed to enhance student engagement, critical thinking, and problem-solving skills. The high validity scores across all evaluated categories—Content, Language, Structure and Organization—demonstrate that the model is reliable and adaptable for use in various academic contexts. In contributing to the literature on educational models, the PBPL Model Book stands out as a well-validated tool that addresses theoretical and practical educational needs. Its emphasis on active learning methodologies ensures students are better prepared to address real-world challenges. Consequently, this model is a valuable resource for educators seeking to implement innovative teaching strategies within higher education. The PBPL Model Book supports advancing pedagogical practices and educational experience by fostering a dynamic and engaging learning environment. © 2025 Malque Publishing. All rights reserved.
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