Background & Aims: Most previous studies have shown that the language abilities of children with attention deficit hyperactivity disorder (ADHD) are weaker than normal children. But there is no study that examines the impact of ADHD on all areas of linguistic abilities at the same time. The purpose of this study was to investigate the lack of simultaneous and separately linguistic functions in children with ADHD.
Materials & Methods: For this purpose, 163 students from the fourth and fifth grades of primary school in the middle of the city were selected conveniently and randomly. Verbal memory, naming speed, verbal fluency, language ability, reading abilities, attention, attention deficit disorder with hyperactivity were assessed.
Results: The results showed that the verbal memory, naming speed, verbal fluency, reading ability, attention at the same time in ADHD children are weaker than normal children (Wilks' λ= 0.153, F(19,143)=41.5, p<0.001).
Conclusion: The research showed that language abilities in children with ADHD are separately weaker than normal children and also language abilities in sum were significantly different between them.

Keywords: language ability, attention deficit &, hyperactivity disorder, reading ability, verbal memory

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