The specific learning difficulty 'dyslexia' is often referred to as a syndrome, because of
the various signs and symptoms associated with it. There is not one single feature, but
a 'cluster'. Dyslexia occurs in every ability range. An individual who does not perform
well on ability tests can display many dyslexic signs. But this 'cross-over' of symptoms
can be related to more global difficulties (not a specific learning difficulty).
The academic manifestations of a specific learning difficulty such as dyslexia are persistent problems with some, or all, of the following: reading, spelling, writing and maths. Dyslexics usually develop their own strategies for coping. It is not unusual for a bright dyslexic child to mask other symptoms by reading at a level appropriate for their age - or above.
If your child can read, it by no means follows that they are free of a specific learning difficulty such as dyslexia. They could still be dyslexic but failing to reach their potential.
Early diagnosis by means of a dyslexia assessment is beneficial, both educationally and psychologically. Sometimes we see students who have more general difficulties. Although the prognosis may not be as good, because the innate ability is not as high, benefits can be gained by adopting a structured multisensory approach.