[gravypod]

I don't think there is anything representative of an employee's quality of work that can be done during a short interview that would have a strong correlate to productivity and quality. I think a real-world take-home problem followed by a meeting-style presentation of your work, your solution, and a Q&A about the implementation with a representative subset of your peers would be better as this would actually be representative of the work load at hand at the company.