Book claims grit and persistence predict success better than test scores
GED holders match college-bound graduates on cognitive tests yet land near dropouts on earnings and marriage, which is why Tough puts grit and self-control ahead of IQ.
Culture · 1 source · Oct 9, 2026Read itThe journal
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About Jack Shonkoff
Jack P. Shonkoff is an American pediatrician, currently the Julius B. Richmond FAMRI Professor of Child Health and Development at Harvard T.H. Chan School of Public Health and Harvard Graduate School of Education as well as Professor of Pediatrics at Harvard Medical School and Boston Children's Hospital. He is a member of the research staff at Massachusetts General Hospital and serves as Director of the Center on the Developing Child at Harvard University. He currently chairs the National Scientific Council on the Developing Child, and the JPB Research Network on Toxic stress.
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- pediatrician