History and Objectives: Due to the importance of self-confidence on the carrier, social, family and psychological well being of adolescents, due to the lack of information on the self-confidence among adolescents, the present study was undertaken in order to determine the rate of self-confidence among male high school students in 1996-1997 school year.

Materials and Methods: A descriptive study on 400 cases was performed. Self-confidence was assessed on the basis of Eyseneck method and divided into 3 high (Score higher than 21), fair (Score between 14-21) and low self esteem (Lower than 14). In addition, personal records including birth ranks in the family, family size and age were recorded. The prevalence of low self-esteem in the samples with 95% confidence of interval was obtained.

Results: Low self-confidence was observed among 21.5% whereas 71.3% individuals had fair self-confidence and 7.3% had high self-confidence. High self-confidence was observed with family size of 5 or higher and among older children in a given family.

Conclusion: Since low self-confidence is prevalent among adolescents in Kashan, further analytical research is required to find the underlying causes of low self-confidence.