The design studio constitutes the core of interior architecture education. The purpose of this research is to discuss the factors influencing function and form decisions of students in design studio where the students encounter various obstacles in solution-seeking process for the design problem. The study primarily defines the educational approach of design studio and examines deductive and inductive design methods which guide students in their function and form decisions. The function and form decisions of students within two design studio case studies and a survey administered to these students are analyzed in order to discuss the factors influencing their decisions. (C) 2015 The Authors. Published by Elsevier Ltd.