I supervise an ACT testing site 6 times per year. It's a contract position and we are paid per testing event rather than hourly. I'm in charge of recruiting proctors, booking classroom space, receiving the testing materials, sorting them, and then passing them out to my proctors on test day. During the testing, I really don't have to do anything aside from a little bit of data entry and covering for my proctors when they need a bathroom break. When the tests end, I collect the answer sheets and test materials from the proctors, look them over, package it all up and then send it all back to ACT for scoring. And then a little bit more data entry to make sure we all get paid.
It's a pretty easy gig, and the money's decent. The proctors get a set amount for administering a test (I think it's about $120), but I get paid more depending on how many students are testing on a given day. I've made up to $500 for a single administration. If I figure 8 hours between the prep, the testing, and the wrap-up, that's $60+ per hour. Not bad, especially when half of that time is spent fucking around on the internet.