Tag: Army Beta

Discovery of IQ scores for conjoined twins Daisy and Violet Hilton

Aug 3, 2020Russell T. WarneArmy Beta, case studies, conjoined twins, Daisy and Violet Hilton, digit span, History of Psychology, intelligence testing, personality testing

Archival research can sometimes be very surprising. I experienced this firsthand last week when I doing some research for a manuscript that I am coauthoring with a colleague. I was reading some historical scientific articles when I stumbled upon a book chapter entitled “A Study of a Pair of Siamese Twins” (Koch, 1928). Of course,…

Zenderland’s biography of Henry Goddard

I just finished reading Leila Zenderland’s (1998) biography of Henry H. Goddard, a pioneering psychologist in intelligence testing. It is the best biography of any of the early psychologists involved with the development of intelligence testing. Henry Herbert Goddard was a psychologist who, in the early 20th century, was America’s foremost expert on the identification…