Henny K. is a doctoral student working on sensory integration.  She also offers piano lessons via Skype to students on the spectrum (both speaking and non-speaking, including those with dyspraxia).  Henny  is currently conducting a research study on childhood behavioral interventions, from the point of view of both autistic adults and caregivers.  To participate, go to this site:

https://hennyk.com/2016/07/16/research-study-on-autism-childhood-interventions-online-survey/

I think the results should be extremely interesting.