As someone who's interviewed many times, for many types of jobs, since 1990, I agree with this article.
Some employers like behavioral interviews because they think you can't prepare for it. Think again. No matter how many employers say you can't prepare for them, you can still dig deep into your memory before the interview and be ready to talk experiences that could fit situations your potential employer throws at you.
Here are some questions you might encounter, courtesy of Scott Weighart, author of "Find Your First Professional Job: A Guide to Co-ops, Interns and Full-Time Job Seekers":
Tell me about a time you:
* failed at something
* had to take an unpopular stand
* really had to go way above and beyond
* had to show exceptional attention to detail
* dealt well with a difficult colleague/co-worker
* showed that you can multitask under pressure
Make sure you prepare your stories, too -- you might be able to wing it, but you won't give the best answers if you do.
And don't even think of making stuff up.