"I Won’t Hire People Who Use Poor Grammar. Here’s Why"

Followed by irrelevant rationalizations to justify a pre-made decision.

>Everyone who applies for a position at either of my companies, iFixit or Dozuki, takes a mandatory grammar test. Extenuating circumstances aside (dyslexia, English language learners, etc.), if job hopefuls can’t distinguish between “to” and “too,” their applications go into the bin.

If you don't respect your employees as people doing a specific job for you (and need to be judged on their skills on that), then you can also add any number of tests and criteria you want to stroke your ego.

"If you can't solve the Rubik's cube fast enough you're not smart enough for us", "If you can't do an effortless cartwheel, leave now", ...