ABSTRACT Economic learning requires active student engagement in analyzing problems and developing critical thinking skills; however, learning that is less oriented toward problem solving may limit such engagement and students’ learning achievement. This study aimed to determine the effect of the Problem Based Learning (PBL) model on students’ critical thinking skills and learning outcomes in Economics among Grade XII SOEKTIS 1 students at MAN 2 Mataram. The study employed a quantitative approach using a quasi-experimental method with a Nonequivalent Control Group Design. The sample consisted of an experimental class and a control class selected using purposive sampling. Data were collected through tests and observation and analyzed using the Independent Samples t-test and Multivariate Analysis of Variance (MANOVA). The results showed that PBL had a significant effect on students’ critical thinking skills and learning outcomes, as well as a significant effect on both variables simultaneously. Therefore, PBL can be considered an alternative instructional model for Economics learning to support the development of students’ critical thinking skills and learning achievement. ABSTRAK Pembelajaran Ekonomi memerlukan keterlibatan aktif siswa dalam menganalisis permasalahan dan mengembangkan kemampuan berpikir kritis, namun pembelajaran yang kurang berorientasi pada pemecahan masalah dapat membatasi keterlibatan tersebut dan pencapaian hasil belajar. Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Problem Based Learning (PBL) terhadap kemampuan berpikir kritis dan hasil belajar siswa pada mata pelajaran Ekonomi kelas XII SOEKTIS 1 MAN 2 Mataram. Penelitian menggunakan pendekatan kuantitatif dengan metode quasi experimental dan desain Nonequivalent Control Group Design. Sampel terdiri atas kelas eksperimen dan kelas kontrol yang dipilih menggunakan teknik purposive sampling. Data dikumpulkan melalui tes dan observasi, kemudian dianalisis menggunakan Independent Samples t-test dan Multivariate Analysis of Variance (MANOVA). Hasil penelitian menunjukkan bahwa PBL berpengaruh signifikan terhadap kemampuan berpikir kritis dan hasil belajar siswa, serta berpengaruh signifikan terhadap kedua variabel tersebut secara simultan. Dengan demikian, PBL dapat menjadi salah satu alternatif model pembelajaran Ekonomi yang mendukung pengembangan kemampuan berpikir kritis dan pencapaian hasil belajar siswa.
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