Probably pretty common. When I was in my early 20s I applied for a relatively high paying job delivering beer locally. They had us all take a test...I don't remember a ton about it but it seemed a combination of general knowledge and 'IQ' testish questions.

The guy told me nobody had ever got a perfect score before, but they wouldn't hire me. For the same reason listed in the article - I wouldn't stick around long before finding something better. The guy was nice about it, and said I could find something better than this position. At the time I felt a bit cheated, but thinking back I guess that's correct. I was off programming computers about 3 years later.

That said, this was beer delivery, not tax funded policing. I think we'd all be better served by having smarter police.