Grit: The Power of Passion and Perseverance · chapter 11 · id grit-c11-02-warren-willinghams-longitudina
“Warren Willingham's longitudinal study following 3,767 college students found that sustained commitment to one or two extracurricular activities in high school predicted college success better than participating in many activities.”
TRUE, BUTconfidence: medium⚠ extracted by pipeline, re-audit pending
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This claim is a stable, citable object. If you can falsify a verdict, tell us. Corrections are loud here.