Abstract

• The main purpose of this study is to explore the relationship between self-confidence and Physics achievement of Grade 9 students. Descriptive survey research method was applied and quantitative data analysis was executed in this study. As the research instruments, SelfConfidence Questionnaires and researcher made Physics achievement test were applied. Self-confidence questionnaires consist of 40 items and researcher made Physics achievement test consists of 25 multiple choice items. A total of 800 Grade 9 students (male=347, female=453) from eight selected high and branch of high schools in Yangon Region were participated in this study. Data from the questionnaires were coded, categorized and analyzed using descriptive statistics, independent sample-t test and one way analysis of variance (ANOVA). The results showed that self-confidence was significantly correlated with Physics achievement. In addition, parents’ education were positively related with students’ selfconfidence and Physics achievement. It was found that female students’ self-confidence and Physics achievement were higher than male students. As the ANOVA results of this study, students’ self-confidence and physics achievement from B.E.H.S (2) Kamayut was the highest among the eight schools and there were significant difference among schools in selfconfidence and physics achievement. Again, students’ self-confidence and Physics achievement whose parents’ education were graduated was higher than that of primary, middle and high