Science and Education Publishing American Journal of Educational Research 2327-6150 5 2 2017 2 22 The Effect of Problem-Based Learning Model (PBL) and Adversity Quotient (AQ) on Problem-Solving Ability 179 183 EN S Sahyar Post Graduate, State University of Medan, Medan, Indonesia Rika Yulia Fitri EDUCATION20175211 10.12691/education-5-2-11 2016 9 24 2017 1 9 2017 2 20 This study aimed to analyze whether the result of students' problem-solving ability with using problem-based learning model better than conventional learning, to analyze the results of problem-solving ability of students who have high average of adversity quotient better than students who have low average of adversity quotient, to find out interaction between problem-based learning model mapping and adversity quotient of students' problem-solving ability. Two class of students namely; problem-based learning class and conventional learning class were investigated on student's problem-solving ability. The results showed that: problem-solving ability of students used problem-based learning model better than conventional learning, problem-solving ability of students who have high average of adversity quotient better than students who have the low average of adversity quotient, and there was interaction between the problem-based learning model and conventional learning with adversity quotient to improve students' problem-solving ability.