BRUSSELS, May 28 (UPI) -- Since 1889 to 2004, IQ declined 14.1 points among those from Western nations, researchers in Europe say.
Michael A. Woodley of Vrije Universiteit in Brussels, Jan te Nijenhuisc of the University of Amsterdam and Raegan Murphy of the University College Cork in Ireland conducted a meta-analysis of the slowing of simple reaction time -- in indication of general intelligence.