The variety of extracurricular lessons available to children compared to what was available to those children’s parents has increased. Parents need more information to help them select the lessons for their children that will be most effective in stimulating the development of their children. The present study aims to obtain fundamental data to be used in the creation of an information tool that will help parents select the best lessons for their children. Specifically, an online questionnaire was distributed to parents whose children have taken lessons in order to understand the association between psychological factors in their children and the types of lessons that their children have been taking.A total of 1,217 responses were obtained. Of them, 772 respondents （662 parents of elementary school children and 110 parents of preschool children） who had been taking a lesson for at least 13 months were included in the analyses. Swimming was the most common lesson taken by elementary school children, followed by piano. Regarding psychological factors, the level of multiple intelligences, particularly interpersonal intelligence, was rated higher by parents whose children were taking piano as compared with those whose children were participating in swimming
