The Flynn effect in Korea: large gains

Thumbnail Image
JtNFlynnAV2012.pdf(407.91 KB)
Accepted Version
te Nijenhuis, Jan
Cho, Sun Hee
Murphy, Raegan
Lee, Kun Ho
Journal Title
Journal ISSN
Volume Title
Research Projects
Organizational Units
Journal Issue
Secular gains in IQ test scores have been reported for many Western countries. This is the first study of secular IQ gains in South Korea, using various datasets. The first question is what the size of the Flynn effect in South Korea is. The gains per decade are 7.7 points for persons born between 1970 and 1990. These gains on broad intelligence batteries are much larger than the gains in Western countries of about 3 IQ points per decade. The second question is whether the Korean IQ gains are comparable to the Japanese IQ gains with a lag of a few decades. The gains in Japan of 7.7 IQ points per decade for those born approximately 1940 1965 are identical to the gains per decade for Koreans born 1970 1990. The third question is whether the Korean gains in height and education lag a few decades behind the Japanese gains. The Koreans reach the educational levels the Japanese reached 25 30 years before, and the gains in height for Koreans born 1970 1990 are very similar to gains in height for Japanese born 1940 1960, so three decades earlier. These findings combined strongly support the hypothesis of similar developmental patterns in the two countries.
Flynn effect , Secular score gains , IQ tests , South Korea
TE NIJENHUIS, J., CHO, S. H., MURPHY, R. & LEE, K. H. 2012. The Flynn effect in Korea: Large gains. Personality and Individual Differences, 53, 147-151. doi: 10.1016/j.paid.2011.03.022
Copyright © 2011 Elsevier Ltd. All rights reserved. NOTICE: this is the author’s version of a work that was accepted for publication in Personality and Individual Difference. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Personality and Individual Differences Volume 53, Issue 2, July 2012, Pages 147–151 doi: