Two Studies of Recent Increases of Intelligence in Taiwan

Abstract

Recent increases of IQ in Taiwan are reported for children and adults. The IQ gain in children measured by the WISC-III and the WISC-IV was 2.45 IQ points per decade over the years 1997-2007. The IQ gain in adults measured by the WAIS-III showed a smaller increase of 0.55 IQ points per decade over the years 2001-2011. In both studies the greatest gains were made on the visual-spatial abilities, with smaller gains on reasoning and the smallest gains on verbal abilities.