Really as the title suggest - what is the cut of age for speech and language skills. DD has had her receptive language skills tested as within the normal range but we do not know about expressive language. She is obviously behind with her peers in this area but does anybody know the cut of age beyond which DD may need intervention. She has just turned 5. I have done some reseach which suggested five and a half was the age as which speech and language skills would naturally resolve?