At the other end is what Raymond Chen calls psychic debugging. This is where you have enough experience to be able to guess the root problem from seemingly-unrelated symptoms. This has a superficial resemblance to debugging by superstition, but it's quite different.
Seriously, now, it appears that experts are more akin to taking the scientific method approach to debugging: isolate and bisect down to the point of the bug. Novices just haphazardly change stuff until stuff appears to work.
I think a lot of us can think of friends and co-workers who fit these profiles.