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Abstract
The study aims to determine whether there is an effect of the double loop problem solving learning model on student learning outcomes in terms of cognitive aspects. The research method used was Pre-Experimental Design with a one-group pretest-posttest design research design, while the technique of taking research subjects was purposive sampling. The research subjects used were 33 people from class X MIA 3. Based on the results of hypothesis testing with a sample size of 61 people, it was obtained tcount = 2.87 with t table = 1.70 so it can be concluded that tcount = 2.87 ≥ ttable = 1.70 . So Ho is rejected, which means that there is an effect of the double loop problem solving learning model on student learning outcomes in terms of cognitive aspects.