Editing Flynn effect (section)

===Precursors to Flynn's publications===
Earlier investigators had discovered rises in raw IQ test scores in some study populations, but had not published general investigations of that issue in particular. Historian Daniel C. Calhoun cited earlier psychology literature on IQ score trends in his book ''The Intelligence of a People'' (1973).<ref>{{cite book |last=Calhoun |first=Daniel |title=The Intelligence of a People |date=1973 |publisher=Princeton University Press |isbn=978-0-691-04619-8 |url=https://archive.org/details/intelligenceofpe0000calh |url-access=registration}}</ref> [[Robert L. Thorndike]] – not to be confused with his famous father ''[[Edward Thorndike|Edward]]'' – drew attention to rises in Stanford-Binet scores in a 1975 review of the history of intelligence testing.<ref>{{Cite journal |last=Thorndike |first=Robert L. |author-link=Robert L. Thorndike|title=Mr. Binet's Test 70 Years Later |journal=Educational Researcher |volume=4 |issue=5 |year=1975 |pages=3–7 |issn=0013-189X |doi=10.3102/0013189X004005003 |jstor=1174855 |s2cid=145355731 }}</ref> In 1982, [[Richard Lynn]] recorded an increase in average IQ among the population of Japan.<ref>{{Cite journal |last=Lynn |first=Richard |author-link=Richard Lynn|date=May 1982 |title=IQ in Japan and the United States shows a growing disparity |url=https://www.nature.com/articles/297222a0 |journal=Nature |language=en |volume=297 |issue=5863 |pages=222–223 |doi=10.1038/297222a0 |bibcode=1982Natur.297..222L |s2cid=4331657 |issn=1476-4687}}</ref>