I applied online. I interviewed at InVision Human Services (Pittsburgh, PA) in Nov 2014
Interview
Very easy, no surprises at all, They ask why you want to work there, your philosophy on individuals with intellectual and development disabilities, how much time you've spent with such people. Then elaborates on what the job description is, and what the job entails (sort of), and asks whether you can do what it takes.
Interview questions [1]
Question 1
Why do you want to work here? Do you have your own, reliable vehicle? What is your philosophy about individuals with intellectual and developmental disabilities? Are you able to perform the job I have just described (after the description).