/sci/ - Science & Math

>>11626503
>Average IQ is 100 (by definition)

"These national IQs were measured from samples
given a variety of intelligence tests and were calculated on a
metric in which the British IQ is set at 100 (sd 15), and the IQs
of other nations are calculated in relation to this standard."

Lynn.


>and not increasing because they keeping make the tests harder to keep the average at 100.

Comparing results intergenerationally they are actually falling.


The Flynn effect stopped in the 80-90s, currently it is reversing in several countries.

The same with height, whites are not getting taller as before, it has stabilized.
>"A long-term rise and recent decline in intelligence test performance: The Flynn Effect in reverse". doi:10.1016/j.paid.2005.01.029.
>"A negative Flynn effect in Finland, 1997–2009". doi:10.1016/j.intell.2013.05.008.
>"A reversal of the Flynn effect for spatial perception in German-speaking countries: Evidence from a cross-temporal IRT-based meta-analysis (1977–2014)" doi:10.1016/j.intell.2015.10.004.
>"Flynn effect and its reversal are both environmentally caused" doi:10.1073/pnas.1718793115