This will sound dumb, but if you're in a situation where you can't have them operating machinery for a test (insurance, whatever)
Go buy a cheap little piece of IKEA furniture. Hand them the box and watch them assemble it. That will tell you everything you need to know about them.
Do they read the directions before? Do they read the directions while they go? Do they read the directions at all? Do they organize everything first or work from a pile? Do they work smoothly or are they fumbly? Can they put the stupid thing together at all? How long does it take? Are they put out about it?
Or offer them a choice. "Would you rather answer questions about what kind of animal you are for 10 minutes, or assemble this chair?"
Go buy a cheap little piece of IKEA furniture. Hand them the box and watch them assemble it. That will tell you everything you need to know about them.
Do they read the directions before? Do they read the directions while they go? Do they read the directions at all? Do they organize everything first or work from a pile? Do they work smoothly or are they fumbly? Can they put the stupid thing together at all? How long does it take? Are they put out about it?
Or offer them a choice. "Would you rather answer questions about what kind of animal you are for 10 minutes, or assemble this chair?"