If Books Could Kill

Grit

226 snips
Apr 30, 2026
They trace how a viral TED Talk turned a psychological idea into school policy. They unpack the origins of a popular grit scale and a live self-test. They critique the research behind grit, its measurement problems, and ambitious claims about predicting success. They explore attempts to teach character in schools and the potential unintended harms of grading noncognitive traits.
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INSIGHT

TED Talk Made Grit A Policy Fad

  • Angela Duckworth's TED Talk and early studies turned a modest research finding into a massive education policy fad driven by storytelling and charisma.
  • Her TED Talk became the 16th most viewed, spawning grit report cards, pep rallies, and policy attention despite limited evidence.
INSIGHT

Grit Defined As Marathon Stamina

  • Duckworth framed grit as a distinct trait predicting success beyond IQ: "perseverance and passion for long-term goals."
  • Her definition emphasized stamina and staying the course despite failure, positioning grit as a universal advantage.
ANECDOTE

West Point Claim Shrunk By Context

  • Duckworth's West Point study claimed grit predicted completion of Beast Barracks better than the academy's whole candidate score.
  • Podcast hosts show Beast Barracks had only 6% dropout and grit differences amounted to a 4% gap, not the touted "99% more likely."
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