You can recruit research participants with the Autism Spectrum Database-UK (ASD-UK) 

ASD-UK aims to

• Help researchers recruit families to studies about autism
• Help families to take part in research that aims to answer important questions about autism
• Collect data about children with autism spectrum conditions and their families

To recruit research participants via ASD-UK

1. Submit all the necessary documents by completing this application form
2. Be invited to speak to the research committee by phone and answer any questions they have from your submitted documentation
3. If your application is accepted, pay a modest fee to cover the cost of Newcastle University staff contacting members of ASD-UK about your project
4. Prospective participants will contact you about your study