The findings were based on the National Child Development Study which followed 17,419 people since their birth in a single week in March, 1958. Throughout their childhood up to early adulthood, they were given a series of tests for academic progress, intelligence and marked on appearance.
这一发现是根据(英国)全国儿童发展研究得出的,这项研究跟踪了1958年三月同一周出生的17419个人。自出生到童年,及至步入成年,就这些人做了学术进展和智力水平的测试,并且对其外貌做评判。