[mecsred]

"Intelligence is not the best predictor of job performance" (McClelland, D.C. 1993)

Not sure why you would use a paper as a "standard reference" when flaws in its method were identified almost 3 decades ago.

[princeb]

it's not consistently referred to as "IQ" or intellligence, typically the measurement is called "g" or "g factor" or "general mental ability" and over the last couple of decades the meta-analyses just keeps pointing towards g being the single best predictor of performance.