Self-regulation predicts later outcomes better than IQ does.
Hold this one loosely. The marshmallow findings largely failed to replicate at scale — controlling for household income and maternal education absorbs most of the effect, and much of what looked like willpower was children correctly judging whether adults keep promises.
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Typed edges. Anything below the line was authored on the other note and derived here.
supports →Investing success is a matter of temperament rather than IQ — the binding constraint is behavioural, not analytical.Graham asserted this about investing from the armchair in 1949. Here is the longitudinal evidence for the general claim, arrived at from developmental psychology with no knowledge of the first.