In addition, research shows that social comparison of one's own performance to the performance of others, especially peers or siblings, serve as a strong source of self-efficacy. Schools are also considered a strong source of self-efficacy. It is good to note that schools are based on the evaluation of students by comparing individual performance to the group's performance. However, this type of evaluation can result in severe problems in self-efficacy for those who lag behind or have trouble with academics.