[partisan]

Developer: I welcome the challenge. I would rather do a timed code quiz than the "how many tennis balls can fit in a school bus" type questions.

Interviewer: I wish we did more of this in our hiring process. A written code sample is a great jumping off point for discussing how and why the applicant makes decisions while coding.

[_RPM]

Open source projects / contributions seems like a better way to probe the candidate on their decisions made while coding.

[smeyer]

But then you only get to use this with people who make substantial open source contributions. There are lots and lots of good developers who don't spend time on open source work.

[Piskvorrr]

Fair point. In a CV, I would consider work on OO projects a bonus, but I would never consider its absence a detriment.