Measurement of Student Creative Thinking Ability in Subject Matter of Elasticity and Hooke Law, Analysis using Rasch Model
(a*) Indri Eka Putri, (b) Muslim, (b) Andhy Setiawan

(a) Postgraduates school, Indonesia University of education *putriindrieka139[at]gmail.com
(b) Physics Education Department, Indonesia University of Education Jl. Dr. Setiabudhi No. 229 Bandung 40314, Indonesia

Abstract

Creative thinking skill is increasingly needed for preparing students to contribute in the society and workplace. The improvement of that skill is likely to produce original and innovative ideas which are the key aspects to develop science and technology. This study aims to obtain an overview of students^ ability in creative thinking on the subject matter of elasticity Hooke law through statistic descriptive using the Rasch model. The instrument used was an essay test developed from Torrance indicators. This research involved 35 students who had studied that subject matter. To obtain the objective, firstly, the analysis of validity and reliability items was conducted for the instrument. The construct validity and reliability were determined by Mean Square (MNSQ) and alpha Cronbach values, respectively. The results of the analysis show that the instrument having been tested is valid and reliable in good criteria. Moreover, the analysis of person reliability and item reliability shows that the students^ answers are consistent and the quality of questions is good. Furthermore, the logit value indicates that there is a tendency of students having a lower ability than the difficulty level of the questions. This implies that the teachers should put more effort to improve creative thinking students in further learning activities.

Keywords: creative thinking, student^s ability, rasch model

Topic: Physics Education