An Analysis of Factors Associated with Self-confidence in the Japanese

Confidence is the belief that one has the ability to do things well or cope with situations. Confidence includes both a field- or situation-specific sense of confidence and an overall sense of confidence that transcends the boundaries of the field or situation, but most research has been conducted on field- or situation-specific confidence. In this study, we analyzed multiple areas of self-confidence in order to clarify the factors related to a broader sense of self-confidence. Confidence in 11 specific items are: confidence in fashion sense, confidence in originality and individuality, confidence in expressing intentions and feelings, confidence in leadership, confidence in intelligence, confidence in work ability, confidence in face and appearance, confidence in body shape and proportions, confidence in popularity with the same sex and the opposite sex, and confidence in one's sports ability. The models were interpreted using the Permutation Feature Importance (PFI) and the Shapley Additive Explanation (SHAP). In many of the models, self-awareness such as "I am the center of the group" and "I have a good sense of color and design" were highly important.