<![CDATA[This study aims to analyze and describe the effectiveness of the Problem Based Learning (PBL) model in improving students' learning outcomes. This study employed a library research method by utilizing secondary data in the form of national scientific journal articles retrieved from the Google Scholar and Garuda databases. The initial search identified 30 articles, which were then screened based on predetermined inclusion criteria, resulting in 15 eligible articles for descriptive analysis. The findings indicate that the Problem Based Learning model is consistently more effective than conventional teaching methods in improving students' learning outcomes across various educational levels and subjects, including Science, Mathematics, Biology, English, and Integrated Science and Social Studies (IPAS). Several studies reported high N-Gain scores, with learning mastery exceeding 90%. The effectiveness of PBL was further enhanced when combined with interactive learning media, such as PowerPoint, Wordwall, Blooket, and audiovisual media, although students' learning motivation also influenced its effectiveness. Based on the findings, it can be concluded that the Problem Based Learning model is effective in improving students' learning outcomes and is appropriate to be implemented as a student-centered learning approach]]>
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