I can’t tell you how many leaders we work with that say “she/he interviewed so well, I don’t know what went wrong!” They are frustrated that what they believed the person said they could do doesn’t match their performance.
This happens because a person’s brain recalls events as they INTERPRETED them, not as they really happened. So the long and short is… you will never get an accurate depiction of a person’s abilities by asking them questions that make them interpret the past.
Instead, make them PROVE their skills. Do things like have them actually walk you through a common problem they may face in the new job and show exactly how they will handle it.
That way you know what their ability is to reason through things, seek out advice when they need it, and apply critical thinking to get things done.