How to weed out less committed employees

To avoid hiring less committed employees, Zappos (the shoe company acquired by Amazon) used to use a unique screen:

After an intensive four-week training period that compensates new employees with their full salary, the company presents the freshly trained group with something called The Offer: “If you quit today, we will pay you for the amount of time you’ve worked, plus we will offer you a $1,000 bonus.” Zappos tests the commitment of its employees from the get-go, because it realizes the importance of a strong call-center team when that's the only customer service experience an online customer will get.