Rankings of 19 predictors of work performance. At the top of the list are “general mental ability” (as in IQ and related measures) and “work sample tests” (e.g., Can you type?).

I agree with Arnold Kling: “I love it that ‘years of education’ just barely beats out handwriting analysis.” Age is the worst predictor.

Bob Sutton: Selecting Talent: The Upshot from 85 Years of Research