The decisions made by individual interviewers are extremely accurate if you realize they are just saying 'YES - I want this person hired' or 'NO - I don't want this person hired'. It's entirely subjective but likely very repeatable.
It's not repeatable; that's the whole point of describing how the same person gets wildly different results when they interview on multiple occasions.
It's not repeatable; that's the whole point of describing how the same person gets wildly different results when they interview on multiple occasions.