A friend of mine has a young child who has recently been diagnosed with autism. The child is hearing, and has a very limited speaking vocabulary. Would sign language be a benefit to the child? Does anyone have experience, either as a parent or teacher, with hearing children with autism using sign language for communication?
Absolutely. I used to hear much better in childhood. For me, although I can speak quite fluently, I get very stressed and upset when I have to speak- it's difficult to do with family, it's impossible with strangers. I can speak perfectly fine alone, though- that's never been a problem.
Communicating non-verbally isn't nowhere near as stressful. Not only am I not frustrated/bothered by the speaking, I'm much more able to actually express my thoughts- people tend to assume I'm far less intelligent when I'm speaking versus signing.
Again, that becomes a source of frustration, which leads to rocking, which leads to people treating me worse... I can bypass the entire process by pretending that I am unable to speak because of my deafness.
I strongly suggest giving it a shot. For any neurodiverse 'disorder' a child has, if it leads to communication impairments, it's time to be looking at alternatives to the most obvious- communication boards, communication cards, keyboards, and of course, signing- if it can be done, it should be tried and stuck with for a while, to see if there's some sort of result. One thing to remember is that the environment where you're attempting to establish a new form of communication makes all the difference- ie, if you're in a classroom, your autistic kid might find the lighting unbearable and become very upset. If you're near a source of sound, it might be too distracting. Try moving the same method to different environments!
Eventually, if the child's intelligence allows for it, you CAN establish a working method of communication- ranging from expressing basic needs to full age-level or advanced communication. Everything needs to be tried... communication is far too essential to give up on an idea just because you're unsure.