其他摘要：This study aimed to develop the Self-esteem Inventory of 4th – 6th grade students which consisted of 17questions with 3 different elements : ability and achievement, self-satisfaction, and self-worth. The sample group of this research were the students who were studying in grade 4 – 6, semester 2 of 2016 academic year from the schools in North Krung Thon District, Bangkok. The multi-stage sampling was used to select 1,304 students as the subjects. Furthermore, content validity was analyzed using Content Validation Index (CVI) by 5 professionals; construct validity was analyzed through factor analysis, internal consistency using Cronbach’s alpha coefficient, and stability was analyzed through test-retest reliability. The results showed that the Self-esteem Inventory of 4th – 6th grade students had Content Validation Index equals to 0.8 – 1 and Cronbach’s alpha score equals to 0.81. In addition, ability and achievement, self-satisfaction and self-worth scores were 0.73, 0.69 and 0.62 respectively.
