Ask The Candidate for Selection Criteria
Top performers should know what it takes to produce a high level of performance in their own jobs. So, ask candidates what criteria they would use to decide if a peer is an "A" player.
Then ask them to use those criteria to assess themselves. Perhaps, on a scale of 1 to 5. Then, have them provide the logic behind their grades.
Most candidates tend to spout generalities. So, you have to get them to talk in terms of specific work done, meaning projects accomplished on time, within budget, to the satisfaction of all concerned - or otherwise.
Then you see if you agree with their criteria and the grades and how they match your job spec.
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