The predictive power of personality measures is compared with the predictive power of measures of cognition captured by IQ and achievement tests. For many outcomes, personality measures are just as predictive as cognitive measures, even after controlling for family background and cognition. Moreover, standard measures of cognition are heavily influenced by personality traits and incentives. Measured personality traits are positively correlated over the life cycle. However, they are not fixed and can be altered by experience and investment. Intervention studies, along with studies in biology and neuroscience, establish a causal basis for the observed effect of personality traits on economic and social outcomes. Personality traits are more malleable over the life cycle compared to cognition, which becomes highly rank stable around age 10. Interventions that change personality are promising avenues for addressing poverty and disadvantage.
Lisa Levinson on 20 Dec 11WHEN a college textbook, "Principles of Biology," comes out from the Nature Publishing Group in January, one place it won't be is on the shelves of school bookstores. Enlarge This Image An interactive graphic in "Principles of Biology," an electronic textbook from Nature Publishing, teaches students about the symptoms of a stroke. Enlarge This Image An interactive graphic from Wolfram Research lets readers change the display parameters of an oil spill. That's because the book was designed to be digital-only. Students will pay not for a printed edition at a bookstore, but for permanent access on the Internet ($49).
