<![CDATA[This study aimed to look at the effectiveness of the PBL-MR learning model to improved problem solving skills of students with different levels of self-efficacy. The effectiveness was seen from the difference in the level of problem solving of students in the topic of reaction rate PBL-MR and PBL learning models. The difference in the level of self-efficacy was seen from the differences of self-efficacy of students in one class where the students had been grouped into high and low levels of self-efficacy based on the questionnaire. This study used an essay test instrument that had a content validity of 94% with a very good category and a reliability coefficient of 0.842 with very high reliability criteria. The research sample was taken from two 11th year classes of SMAN 2 Malang. The results showed that there were statistically significant differences in problem solving abilities of students in both research classes (sig. 0.000) and there were also differences in problem solving skills between students with high and low levels of self-efficacy (sig. 0.028). The interaction of the model and self efficacy also produce significant impacts on problem solving ability (sig. 0,042).]]>
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