The process took 1+ week. I interviewed at Pearson in Jul 2015
Interview
I applied online and had a phone interview a few days later. After the phone interview I was scheduled for an onsite interview the next day. Less than a week later, I was hired! The whole process took less than 2 weeks.
The process took 2 weeks. I interviewed at Pearson (Houston, TX) in Jun 2014
Interview
Meeting with manager of test center and asked mostly flexibility questions. They want you to be able to come in on short notice, anytime, just extremely flexible. He said anything else can most likely be taught, a few service questions. Dress professional
The company is very organized when it comes to hiring procedures. They have a call center that will request further information, and then you move into a face to face interview with a testing center in your area.