In 1910, they looked at the examinations that the state of Ohio gave to 14-year-olds, and they found that they were all for socially valued concrete information.
Em 1910 , no estado de Ohio, analisaram-se os exames  feitos a miúdos de 14 anos e descobriu-se que as perguntas eram todas sobre informações  concretas, valorizadas socialmente.