Introductoin: This research has done with the purpose of analyzing the role of mother’s personality type, especially D type in the prediction of teen’s positive and negative attitude toward delinquency.
Method: A sample of 100 people with their teenage children was selected with cluster sampling for this descriptive – correlation research from the mothers in Hamedan. Mothers completed Friedman and Rosenman, A and B personality type, Rahe and Soloman C personality type and Denollets type D personality scale questionnaire and their sons received questionnaire about their attitude toward delinquency. Pearson's correlation coefficient and multiple regression analysis were used for analyzing the data.
Results: The results showed that there is a positive relation between mothers D personality type and the positive attitude of teens toward delinquency and negative relation between it and negative attitude of teens toward delinquency and no relation has been found between A,B & C personality type and positive or negative attitude toward delinquency. The results of the regression analyses indicated that D personality type determine 47% (ß=0.47) of positive attitude toward delinquency variance and 23% (ß=-0.23) of negative attitude toward delinquency variance.
Discussion and conclusion: These results showed that sons of those mothers who have D personality type are more vulnerable against delinquency. Therefore, by informing the parents and setting the related actions for adjusting mother’s D personality we can prevent and control teen’s delinquency.