Attention deficit/hyperactivity disorder is one of the most common and complex childhood
disorders. This disorder creates many challenges and difficulties for the affected person throughout
his life. For this reason, research and intervention measures in the field of this disorder is the goal of
many psychiatrists, psychologists and researchers. The purpose of the research is to investigate the
effectiveness of cognitive rehabilitation training on improving information processing,
metacognitive awareness and cognitive self-awareness of students with attention
deficit/hyperactivity disorder. The research method was semi-experimental and its design was pre-
test-post-test-follow-up with the control group. The independent variable in this research was
cognitive rehabilitation training and the dependent variable was information processing,
metacognitive awareness, and cognitive self-awareness. The statistical population of the study
includes all male students aged 8 to 11 years with attention deficit/hyperactivity disorder in Shiraz
who were studying in the academic year 1400-1401. Sampling method was available, for this purpose,
30 male students suffering from attention deficit/hyperactivity disorder were identified and selected
with the help of clinical interview of the school psychologist and for more certainty by means of
Connors questionnaire (parent form) and were placed in two experimental and control groups (15
people in the experimental group and 15 people in the control group). The experimental group
received 30-40 minutes of cognitive rehabilitation intervention based on movement during 12
sessions, and no intervention was done for the control group. The data of this research during two
neighborhoods before the application of the independent variable (pre-test) and after the application
of the independent variable (post-test) and the follow-up neighborhood using the information
processing process questionnaire of Shmak et al., the metacognition questionnaire