摘要：[English]: This paper describes how to develop a valid and reliable instrument for geometric creative thinking test based on the information processing taxonomy. Using this model, geometry test can be classified in the level of creative thinking based on the information processing process of the mathematical knowledge they already have to solve problems according to the criteria at each hierarchical level. The development of test instrument refers to Beyers (2011). Quantitative method wasused to validate instruments through experts validation and instrument validation. The results showed that there werefive geometry test that can be used to describe the student’s creative thinking process at a different hierarchical level based on the information processing taxonomy. The results of this study can be a reference for teachers and other researchers to design mathematical test by paying attention to the hierarchical level of student’s thinking abilities so that students with different abilities can solve problemswhich refer to their abilities.
