B.K. Prahani, N. Suprapto, Suliyanah, N.A. Lestari, M.N.R. Jauhariyah, S. Admoko, S. Wahyuni
In the previous research, Collaborative Problem Based Physic Learning (CPBPL) model has been developed to improve student's science process skills, collaborative problem solving, and self-confidence on physics learning. This research is aimed to analyze the effectiveness of CPBPL model towards the improvement of student's self-confidence on physics learning. This research implemented quasi experimental design on 140 senior high school students who were divided into 4 groups. Data collection was conducted through questionnaire, observation, and interview. Self-confidence measurement was conducted through Self-Confidence Evaluation Sheet (SCES). The data was analyzed using Wilcoxon test, n-gain, and Kruskal Wallis test. Result shows that: (1) There is a significant score improvement on student's self-confidence on physics learning (α=5%), (2) n-gain value student's self-confidence on physics learning is high, and (3) n-gain average student's self-confidence on physics learning was consistent throughout all groups. It can be concluded that CPBPL model is effective to improve student's self-confidence on physics learning. © Published under licence by IOP Publishing Ltd.
Department of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Surabaya, Surabaya, 60231, Indonesia; Department of Physics Education, Faculty of Training and Teacher Education, Jember University, Jember, 68121, Indonesia
