Using Decision Tree Analysis for Personality to Decisions of the National Skills Competition Participants

The article aims to find the pivotal personality traits which can influence on winning a prize, compare the difference between the winning participants and the non-winning participants, and finally construct decision trees to achieve classification and prediction by using the Big Five personality traits to analyze the performance of senior and vocational high school students in Taiwan in National Skills Competition. The research utilizes t-Test and C4.5 Decision Tree to analyze commerce-related and home economics-related students. The experiment results showed that it has statistical significances on several personalities in statistical analysis between commerce-related and home economics-related students. However, because the personalities which have statistical significances are the key factor to affect whether a participant can win a prize, I go one step further to construct decision trees to predict the winner of National Skills Competition effectively in the future.