چكيده لاتين :
Biological, cognitive, social, psychological and parents of children with Down syndrome compared to parents of normal children in the Kermanshah.The purpose of this study is to find factors that affect the birth of children with Down syndrome. Sampling method: The population of this study, students with Down syndrome in Exceptional schools and Normal school students In the year 92- 93 in elementary schools enrolled in Kermanshah. Of Normal school students in Kermanshah by cluster sampling method of 70 students (40 boys and 30 girls) were selected.Method Research and tools measurement in this study was collected by a questionnaire that was formulated by a group of experts in the field were used. Reliable obtained between different question, 87% to 94%, and the validity of the questionnaire was presented to the Advisor and other masters, its validity was confirmed.Chi-square test (chi-square) were used for significant differences between Variables .Research Design: The design facto (causal-comparative) .means that the predictor variable attribute that has already happened, and the researcher is not able to manipulate it and researcher will effect is due to arriv .The results showed that the characteristics of the biological, cognitive, social and psychological, parents of children with Down syndrome in compared with parent of childrern normal in most of the variables considered in the study significant differences (p<0/05 and (p<0/01 were observed.