Apologies for picking your brain yet again -
I have a friend living in France with a young child with language disorder (I believe the family are French/English bilingual), who is coming up against professional beliefs that language disorders are due to psychological problems in the child. Idea being that her child's language will improve once his emotional state improves! She's particularly worried because she's read some recent French research suggesting that most bilingual kids with language delay/disorders have these language problems due to emotion/psychological difficultes in managing being bilingual.
Your views would be very much appreciated on this issue!