Introduction: This study aimed to examine the reliability and validity and standardization the "Child exposure to domestic violence scale".

Method: The statistical population included the high school students from First Grade and Second Grade in Tehran in the school year of 2011-2012. A total cohort of 1,212 (615 male and 597 female), selected by stratified Sampling. "Child Exposure to Domestic Violence" Scale (Edleson, Johnson & Shin, 2007) was translated into Persian, it`s items appropriated to Iranian culture, and was conducted in sample. The data was analyzed using SPSS16 by conducting descriptive and analytical operations such as absolute and relative frequency, mean, standard deviation, Pearson correlation coefficient, paired t-test, and exploratory factor analysis.

Findings: Exploratory factor analysis revealed that the scale measured seven subscales: “exposure to father’s violence against the mother”, “exposure to parental conflicts”, “child’s involvement in parent’s violence”, “exposure to violence in school or community”, “exposure to family risk factors”, “exposure to violence through the use of violent video technologies”, and “adult violence against child” that justified 60/04% of the total variance of the scale. The correlation between the scores of the CEDV and “exposure to parental physical violence questionnaire” (Vameghi, 1385) showed an acceptable convergence validity. Also, the total Cronbach's alpha coefficient (.89) and the test –retest reliability coefficient showed that “child exposure to domestic violence scale” has satisfactory reliability. Ther was a statistically significant difference in means of the scale for both boys and girls groups. The same result was found in all subscales (except for exposure to family risk factors subscale). Therefore, the normalization was carried out with regard to gender.