摘要:Objective: The purpose of this study was development and validation of self-knowledge sources scale of Iranian people. Methods: The design of the study was an ex post facto and a survey study to be carried out in data collection. The population included all People between the ages of 20 to 60 year’s old living in Tehran. 800 subjects were selected using stratified sampling method. To collect data, Self-Knowledge Sources Scale was used. The validity and reliability of Self Knowledge Sources Scale were measured at among men and women. Results: The results indicated that Self-Knowledge Sources Scale has reasonable internal reliability and Coefficient alpha estimates of internal reliability were 0/861. Split-half correlation between the 15 questions of Self Knowledge Sources Scale equals 79/0 which shows good internal reliability. Conclusion: According to the results of this study, Statistical analysis related to the reliability of the Self Knowledge Sources scale reveals a favorable psychometric criteria.