Please answer the following question: Facts: - death date: 7 september 2003 - field: psychology - birth date: 12 december 1913 - name: lloyd g. humphreys - nationality: american - alma mater: university of oregon indiana university stanford university Based on these bullet points, write a short biography describing the life of lloyd humphreys .
A:
lloyd g. humphreys -lrb- december 12 , 1913 -- september 7 , 2003 -rrb- was a differential psychologist and methodologist who focused on assessing individual differences in human behavior .his work is among the most widely cited in intelligence research , and he received many prestigious awards in this field .born in lorane , oregon , humphreys earned his undergraduate degree at the university of oregon in 1935 , a master 's from indiana university in 1936 , where he first learned about factor analysis , then received his doctorate at stanford in 1938 , studying under ernest hilgard .his dissertation on the partial reinforcement effect -lrb- or the humphreys effect -rrb- , is considered a classic in the field .his first position was at northwestern university -lrb- 1939 -- 1945 -rrb- .he was a carnegie fellow in anthropology -lrb- 1941 -- 1942 , columbia university -rrb- during that time , then taught at the university of washington -lrb- 1946 -- 1948 -rrb- and stanford -lrb- 1948 -- 1952 -rrb- .he then took a post as research director , personnel laboratory , for the united states air force -lrb- 1951 -- 1957 -rrb- .he then spent the remainder of his career at the university of illinois at urbana-champaign -lrb- 1957 -- 1984 -rrb- .humphreys argued that much psychological research fails to replicate because of inadequate sample sizes , because correlations fluctuate when ns are small .his own empirical research typically involved large-scale longitudinal studies such as project talent .in the 1970s , humphreys chaired the american psychological association 's task force on ability and achievement testing .he deemed a general intelligence test '' the single most important test that can be administered for vocational guidance purposes '' -lrb- humphreys , 1985 , p. 211 -rrb- .he also coined the concept '' inadequate learning syndrome '' -lrb- ils -rrb- and argued it was a more important social problem than the aids epidemic -lrb- humphreys , 1988 -rrb- .amid the controversy generated by...