Can ADHD symptoms mask dyslexia during assessment? 

It is possible for ADHD masking dyslexia symptoms to occur during an evaluation, especially when attention and behavioural challenges overshadow reading-related difficulties. This can make it harder for professionals to detect the underlying reading disorder. The dyslexia ADHD symptom overlap is one reason why comprehensive testing is essential when either condition is suspected. 

ADHD assessments often focus on impulsivity, distractibility, and executive function issues. If these signs are pronounced, they may be incorrectly assumed to explain all academic challenges. This can lead to ADHD assessment dyslexia masking, where dyslexia-related reading, spelling, or phonological processing problems go unnoticed until later. 

Why Masking Happens 

Masking may occur when symptoms of inattention or hyperactivity dominate classroom observations and parent reports. In such cases, decoding and comprehension issues linked to dyslexia may be attributed solely to focus problems. This pattern of misdiagnosis ADHD dyslexia can delay the right interventions, which is why ADHD masking dyslexia symptoms needs to be on the radar for assessors. 

Signs That Dyslexia May Be Overlooked in ADHD Cases 

Here are some indicators that dyslexia could be present alongside ADHD: 

Consistent reading inaccuracy  

Errors remain even when attention is optimised, suggesting a language-based issue. 

Poor spelling despite good verbal skills  

Indicates difficulties with sound–symbol mapping. 

Slow reading speed without obvious distraction  

Points toward decoding challenges rather than purely attention-related delays. 

Visit providers like ADHD Certify for personal consultations that investigate both attention and reading abilities thoroughly. 

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Learning disabilities (e.g., dyslexia).