Pathology of Sibling Sub System; a Qualitative Study of Phenomenal World of Sibling in Families with Children with ADHD Disorder

Considering the problems of families with children suffering from ADHD and the shortcomings of studies focusing on these damages, the purpose of this study is to identify the pathologies of sibling sub system in families with children suffering from Attention Deficit/Hyperactivity Disorder (ADHD)This research is a qualitative study using phenomenological method. Population consists of all families with children suffering from ADHD who employed the services of counseling or psychiatric centers in Sanandaj. Purposeful sampling was used and included 27 people. Semi-structured interview was used as an instrument and the data analyzed with seven-step method of Colaizzi (1978). In this research, essential codes that were obtained from coding include three types of descriptive, interpretative and explanatory coding, including formation of negative feelings, special problems in ADHD children and lack of coping skills. Results showed that sibling sub system is influenced by the problems of the child suffering from ADHD in family and causes specific damages and negative influences on this sub system. Therefore, this sub system needs supervision, support and specific training to reduce damages.