<![CDATA[Abstract: This study aims to determine the effect of the conceptual change model with a cognitive conflict approach on concept mastery and self-regulation of class X students in biology subjects. The quasi-experimental method with posttest only controls group design. The research population is students of class X Mathematics and Natural Sciences, class X Mathematics Natural Sciences 1 as the experimental class, and class X Mathematics Natural Sciences 2 as the control class. Data collection techniques with concept mastery tests and self-regulation questionnaires. Data analysis used an independent sample t-test. Based on the results of the study, the average value of mastery of concepts in the experimental class was 71.14, and the control class was 65.52. The average self-regulation in the experimental class was 73.29, in the control class it was 65.91. Independent sample t-test test shows that p value more than 0.05. This means that there is an influence of the conceptual change model with a cognitive conflict approach on concept mastery and self regulation in class X in biology subjects.Keywords: conceptual change, conflict cognitive approach, mastery of concepts, self-regulation Abstrak: Penelitian bertujuan untuk mengetahui pengaruh model perubahan konseptual dengan pendekatan konflik kognitif terhadap penguasaan konsep dan self regulation peserta didik kelas X pada mata pelajaran biologi. Metode eksperimen semu dengan posstest only control group design. Populasi penelitian yaitu peserta didik kelas X MIPA, kelas X MIPA 1 sebagai kelas eksperimen dan kelas X MIPA 2 sebagai kelas kontrol. Teknik pengumpulan data dengan tes penguasaan konsep dan angket self regulation. Analisis data menggunakan uji independent sample t test. Berdasarkan hasil penelitian, nilai rata-rata penguasaan konsep kelas eksperimen 71,14 dan kelas kontrol 65,52. Rata rata self regulation kelas eksperimen 73,29, pada kelas kontrol yaitu 65,91. Uji independent sample t test menunjukkan bahwa p value lebih dari 0,05. Artinya terdapat pengaruh model perubahan konseptual dengan pendekatan konflik kognitif terhadap penguasaan konsep dan self regulation kelas X pada mata pelajaran biologi.Kata kunci: perubahan konsep, pendekatan konflik kognitif, penguasaan konsep, self-regulation.DOI: http://dx.doi.org/10.23960/jpmipa/v23i1.pp100-110]]>
