Family background and genius II: Nobel laureates in science.

OBJECTIVE In a previous study of literary creative achievement, we presented evidence refuting the still-influential statistical studies of Frances Galton on the inheritance of genius and also described a family background constellation of creativity. This study aims to assess empirically the hereditary transmission hypothesis with respect to creative achievement in the natural sciences. METHODS Family background data were collected on 435 of all 488 Nobel laureates in chemistry, physics, and medicine and physiology, from 1901 through 2003. These were compared with a matching group of 548 eminent nonscientists for incidence of occupational inheritance (that is, same parent-offspring occupations) and with 560 high-IQ nonprizewinners for predominant type of occupation. RESULTS The incidence of one or both parents having the same occupation was only 2% for science Nobel laureates but 20% for eminent nonscientists (P < 0.001). The predominant family background constellation (63%) for science Nobel laureates consisted of the same-sex parent either having a performance-equivalent occupation involving applied science, technology, or a natural-world focus and skills (P < 0.001, compared with the matching group) or having an unrelated occupation with unfulfilled scientific interests and wishes for creative expression. CONCLUSIONS Nobel laureates in the natural sciences do not manifest direct inheritance of creativity from their parents; instead, congruent-sex parents are predominantly in applied or performance-equivalent occupations, with unfulfilled creative and scientific wishes. Early developmental influences on motivation involving identification and competition with the congruent-sex parent are suggested.