[palakchokshi]

This is anecdotal but in my experience a better signal is whether the candidate codes with best practices in mind. Give a moderate complexity design problem and watch for use of best practices/design patterns (good commenting, SRP, DRY, DI, IOC, etc). That tells me the code that person will write can be understood and maintained by someone else. After all the person who wrote the code is not necessarily the person who's going to maintain and enhance it for the lifetime of the application.