In Baseball, Younger Siblings Steal More Bases
- Updated: June 26, 2010
Younger siblings are more prone to taking risks. That is a long-standing theory of University of California, Berkeley, evolutionary psychologist Frank Sulloway, who argues this behavior is a reaction to their relative lack of parental attention.
The look-at-me hypothesis makes intuitive sense, and evidence for it was presented in a study of economic behavior last year. But proving its validity to skeptics would require finding a controlled setting where personality traits are exposed in clearly measurable ways — like a baseball diamond.