If they're interested in you they'll call you back again and again, everyone department head will interview you, you'll have to take all kinds of tests, it's kind of ridiculous.

I applied via a posting on Craigslist. I received a phone call about 3 days later asking me to come for a group interview the next day. It was a group interview with 6 other people. We all were required to fill out an app and then the director and a HR person did a roundtable where we were supposed to tell them about ourselves. The job pay was low and no supervision hours were offered towards licensure. They told me I was overqualified and I got a rejection letter a few days later.