Chemistry student^s virtual laboratory self-efficacy: A scale development Y Romika and S Atun
Pendidikan Kimia, Program Pascasarjana, Universitas Negeri Yogyakarta
Abstract
Self-efficacy is described as an individual^s beliefs about their abilities to complete an action. It is a part of the social cognitive theory in the chemistry learning process. self-efficacy consists of six aspects, namely the choice of activities, effort, perseverance, learning, achievement and strategy orientation. This study was aimed to develop a chemistry student virtual Laboratory self-efficacy (CSVL-SE) instrument used in a virtual laboratory within the chemical equilibrium topic. The method of this study is an applied research and development (RnD) method. The data was obtained through a self-efficacy questionnaire. The expert confirmed the content validity with 26 items that had been administered to 60 students in senior high school. The data were analyzed using a Rasch model that met the criteria of reliability, unidimensionality, item fit, difficulty estimation, and information function. The results of the research model showed that 26 items fit with the rash model and high-reliability person 0,84 and reliability item 0,97. So that this instrument acceptable as a good instrument to collect the data.
