Pamukkale Üniversitesi Eğitim Fakültesi Dergisi (PAU Journal of Education) [2019] doi: 10.9779/pauefd.526407 Araştırma Makalesi/ResearchArticle Intersections between Critical Thinking Skills and Reflective Thinking Skills toward Problem Solving Eleştirel Düşünme Becerileri ve Problem Çözmeye Yönelik Yansıtıcı Düşünme Becerileri Arasındaki İlişkiler Aytaç GÖĞÜŞ 1 , Nihat Gökhan GÖĞÜŞ 2 , Erdi BAHADIR 3  Received: 13.02.2019  Accepted: 05.09.2019  Published: 05.09.2019 Abstract This study investigates the relationship between the critical thinking skills and the reflective thinking skills toward problem solving and the effects of two variables weekly study hours and social activities on reflective and critical thinking. Positive correlations between reflective thinking and four sub-dimensions of critical thinking, analyticity, systematicity, self- confidence, inquisitiveness, also between critical thinking skills and all three sub-dimensions of reflective thinking, questioning, reasoning, and evaluation, are found. A regression model is obtained to predict the reflective thinking skills toward problem solving with three dimensions of critical thinking skills; self-confidence, analyticity, inquisitiveness. Weekly study hours have a significant effect on both reflective and critical thinking. As time spending on studying increases until 15 hours in a week, questioning and reasoning dimensions of the reflective thinking and inquisitiveness dimension of the critical thinking are increasing. As time spending on studying increases until 20 hours in a week, only evaluation dimension of the reflective thinking are increasing. Being an active undergraduate in studying affect questioning, reasoning, evaluation skills of reflective thinking, and also inquisitiveness skill of critical thinking while social activities affect not only questioning and evaluation dimensions of reflective thinking, but also truth-seeking, open-mindedness, and systematicity dimensions of critical thinking. Keywords: critical thinking skills, reflective thinking skills, university students, study duration, social activity. Cited: Göğüş, A., Göğüş, N.G., & Bahadır, E. (2019). Intersections between critical thinking skills and reflective thinking skills toward problem solving. Pamukkale University Journal of Education, doi: 10.9779/pauefd.526407 1 Professor, Istanbul Okan University, Department of Educational Sciences, aytac.gogus@okan.edu.tr, https://orcid.org/0000- 0001-8215-3294 2 Associate Professor, Sabancı University, Faculty of Engineering and Natural Sciences, nggogus@sabanciuniv.edu, https://orcid.org/0000-0003-1966-8409 3 Clinical Psychologist, erdibhdr@gmail.com, https://orcid.org/0000-0002-8404-1779