Success in every field depends on person's internal beliefs, abilities and limitations. Some people know their real abilities and limitations. Knowledge about ourselves is known as self-concept. Generally, kids have warmth and good relationship with their parents have positive self-concept. In present study, the researcher has constructed a small self-concept inventory. This self-concept inventory was used to study the self-concept of students of standard 9. The researcher has chosen students from two different schools located in Ahmedabad city as a sample. A comparison of self-concept between boy and girls were performing using t test. The researcher has also checked the effect of self-concept of students on their scholastic achievement.

KEYWORDS: Self-Concept, Warmth and Good Relationship, t Test, Scholastic Achievement.