Abstract
The main purpose of this study is to a investigation on the relationship between students' perfectionism, mathematics confidence and their academic achievements over three years of university life.The difference between gender and college entrance channels affect mathematical confidence,perfectionism, Academic Achievement. The research processes in this study are: first, The questionnaire used in this study was based on a English version questionnaires which was constructed in other related study as a reference.The factor analysis was used to analyze the main factor of Perfectionism questionnaire.After applying data using multiple regression analysis, T-test, one-way ANOVA and multiple correspondence analysis, we have the conclusion of our question. After completing and analyzing survey, the reliability analysis shows the result of all of its subscales' reliability reached certain level of reliability with Cronbach's α . The outcome of this study demonstrated that the grades of Calculs had positive and significant relationship with mathematical confidence,perfectionism(Personal Standard and Organization), for the student of college of science and engineering, it affects GPA.The grade of English had positive and significant relationship with perfectionism(Parental Criticism and Parental Expectation).By using multiple correspondence analysis, the result can be confirmed and led to further discussion on the correlation. Furthermore, the difference between gender and college entrance channels did affect mathematical confidence,perfectionism, Academic Achievement.