Grit: The Power of Passion and Perseverance · chapter 2 · id grit-c2-04-catharine-coxs-1926-study-of-3

“Catharine Cox's 1926 study of 301 eminent historical figures found that while IQ was positively correlated with eminence, persistence and drive were equally important predictors of achievement.”

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Receipts

Simonton & Song (2009), Psychological Science - Cox's 282 Geniuses revisitedsource alive

Eminence is a positive function of IQ and IQ is a positive function of mental health and a negative function of physical health among Cox's sample.

Wikipedia - Catharine Cox Miles biographysource alive

Cox's Early Mental Traits of 300 Geniuses was published in 1926 as Volume 2 of Terman's Genetic Studies of Genius. She estimated childhood IQs of 301 eminent individuals born between 1450 and 1850.

University of Groningen thesis on personality traits in Cox's analysessource alive

Cox found that persistence of motive, intellectual traits, self-traits, and activity traits played vital roles in achievement alongside intelligence.

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