Standard Article

Flynn Effect

  1. Michael A. Mingroni

Published Online: 30 JAN 2010

DOI: 10.1002/9780470479216.corpsy0364

Corsini Encyclopedia of Psychology

Corsini Encyclopedia of Psychology

How to Cite

Mingroni, M. A. 2010. Flynn Effect. Corsini Encyclopedia of Psychology. 1–2.

Author Information

  1. Newark, DE

Publication History

  1. Published Online: 30 JAN 2010


The term “Flynn Effect” refers to the finding that IQ test scores have increased over time in many countries (Flynn, 2007). Most existing evidence of the effect comes from industrialized nations; however, recent studies suggest that gains are now occurring in developing countries as well. In some northern European countries, the trend appears to have stopped. At present there is no generally agreed-on explanation for the effect.


  • Flynn effect;
  • IQ;
  • secular trend