Description of meta-analysis of inquiry-based learning of science in improving students’ inquiry skills

摘要

This meta-analysis is the result of preliminary research which aims to describe the effectiveness of inquiri-based science learning in effort to improve students' inquiry skills. The study of meta-analysis with observation method and analyzed of fifteen journals, literature review using Google search engine in Journal of Baltic data base, ERIC journals (Education Resources Information Center and Google Scholar). Calculation of analysis used average Effect Size (ES), analyzed the articles as research samples, then categorized based on Cohen's criteria The results of the data analysis obtained average Effect Size of 0.45, with the category "medium". Variations between levels of education and the country of researchers in the journals, the highest effect was on the state of America with a score was 0.88, with the category "high" in elementary school level. Based on the analysis of all samples of this study concluded that inquiry-based learning can be used in the development of science learning and improving of students inquiry skills on each level of education.