Secular trends in cognitive test performance: Swedish conscript data 1970–1993

Massive IQ gains in 14 nations: What IQ tests really measure.

James R. Flynn · Psychological Bulletin · 1987 · 1.8K citations

Education, Educational Measurement, Psychology +13

The Raven's Progressive Matrices: Change and Stability over Culture and Time

John Raven · Cognitive Psychology · 2000 · 1.6K citations

Social Sciences, Sociology, Culture +2

The mean IQ of Americans: Massive gains 1932 to 1978.

James R. Flynn · Psychological Bulletin · 1984 · 1.1K citations

Social Sciences, Behavioral Sciences, Psychology +10

The end of the Flynn effect?A study of secular trends in mean intelligence test scores of Norwegian conscripts during half a century

Jon Martin Sundet, D BARLAUG, Tore M. Torjussen · Intelligence · 2004 · 225 citations

Social Sciences, Behavioral Sciences, Psychology +11

Rising mean IQ: Cognitive demand of mathematics education for young children, population exposure to formal schooling, and the neurobiology of the prefrontal cortex

Clancy Blair, David A. Gamson, Steven L. Thorne et al. · Intelligence · 2004 · 219 citations

Education, Mathematics Education, Neurobiology +16