The process took 4 days. I interviewed at Young Art
Interview
You get thrown into unpaid work just to see how well you interact with children. Even if you do get hired, you still won't be paid for it. It's awkward since they just expect you to know what you're doing even if you have never drawn anything the kid requested to draw.
I applied online. The process took 2 weeks. I interviewed at Young Art (San Francisco, CA) in Jan 2017
Interview
First they made me do a phone interview where they asked some very basic questions then I was required to do two in person interviews where they made me work for two hours (each) without pay. No real questions were asked they just put your directly to work after a quick tutorial. No pay is given for your work if they choose to hire you.