Standardization and Study of the Psychometric Properties of Randolph Attachment Disorder Questionnaire

The purpose of the present study was standardization and study of the psychometric properties of Randolph Attachment Disorder Questionnaire in Isfahan. This study was a survey research and was implemented among 7 to 12 year old students of Isfahan. Among statistical population، 340 students were selected using multistage sampling، and their parents responded to the items in Randolph Attachment Disorder Questionnaire. Due to percentile ranks and ROC table، the score of 30 was selected as the best cut off point which was equal to percentile rank 90. The face validity and construct validity of the questionnaire was approved by experts. The discriminant validity was studied using discriminant analysis. The reliability was desirable (0. 83) using Cronbach’s alpha. Exploratory factor analysis approved 3 distinct factors in the questionnaire structure that were titled as bullying، impulsiveness and antisocial behaviors. According to the results obtaining from the validity and reliability analysis of Randolph attachment disorder questionnaire، this instrument is reliable and valid and is capable to be used in Iranian society in order to investigate attachment disorder.