Consider Jack and Oskar: Twin Studies
Michael Rossi, 7 February 2013
In a tongue-in-cheek editorial in the February 1927 issue of the Journal of Educational Research, the psychologist Guy Whipple announced that ‘the age-old perplexity of heredity has been banished; the old riddle of nature versus nurture has been solved.’ For the previous half-century, psychologists, geneticists, pedagogists and eugenicists had been trying to determine how...
