Shit like this seems like it's worth it... but it rarely is. I did a few in Montreal to help pay some bills and it fucking blew. Mock interviews with people being super assholes, multiple blood tests, saliva tests, sitting in front of cameras counting backwards from 2583 in integrals of 17, etc.
In the end it comes out to around 12 or 15 an hour. Add transportation and shittiness of the experience and fuck that. Mine were mostly psych tests though, which I imagine are rougher on the overall.
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