A negative Flynn Effect in France, 1999 to 2008-9

The results of the French WAIS III (1999) and the French WAIS IV (2008-9) are compared based on a sample of 79 subjects aged between 30 years and 63 years who took both tests in 2008-2009. It is shown that between 1999 and 2008-9 the French Full Scale IQ declined by 3.8 points.