An investigation of reasoning ability at the secondary level students

Abstract

The study aims to investigate students' reasoning ability of junior high school level. This study is quantitative descriptive research. The sample of the study were 178 students of eighth junior high school in Bandung, Indonesia. The samples were chosen by using stratified random sampling technique. A logical thinking test was used as the instrument of this study which consist of five reasoning aspects and every aspect consist of two items. The result indicates that only several students who have formal reasoning ability. There are many students who lack of probabilistic and correlational reasoning.