There is another very strong bias that goes on when hiring, though. Take 9 competent developers who tend to get offers and 1 that can't code their way out of a box. That 1 could very easily do more interviews than the other 9 combined before landing a job (and will be back on the market sooner to boot) and interviewers might conclude them typical and the other 9 atypical even though the reverse is true.