Job Performance Resources & Guides

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Does IQ Predict Job Performance? A Shrinking Number

June 30^th, 2026

Cognitive ability still predicts job performance, but the corrected correlation fell from r = .51 in 1998 to r = .22 in 2024. See what shrank and what held up.

17 min•Read more

IQ Science

What Is Cognitive Intelligence? The Science Behind Your Brain's Most Powerful Career Asset

March 16^th, 2026

Cognitive intelligence predicts job performance better than any other trait. Learn the science behind g-factor, fluid vs. crystallized IQ, and career impact in 2026.

16 min•Read more

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Does IQ Predict Job Performance? A Shrinking Number

What Is Cognitive Intelligence? The Science Behind Your Brain's Most Powerful Career Asset

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