Crux of Actually, practice doesn’t always make perfect – new study by Alfie Kohn:

  • The popular idea of 10,000 hours is disproved by research: “the amount of deliberate practice in which someone engages explains only 12 percent of the variance in the quality of performance.”
  • The effect of practice depends on the domain: “Practice explained 26 percent of the variance in achievement for games, 21 percent in musical accomplishment, 18 percent in sports, 4 percent in college grades, and less than 1 percent in professional success.”
  • Other factors that do, in fact, contribute to performance: “how early in life you were introduced to the activity […] how open you are to collaborating and learning from others, and how much you enjoy the activity.”
  • It is possible that the amount of practice is a result of intrinsic motivation, and that it is this motivation that affects the performance more than the practice.
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