gravity wrote:
psychometrics have biases too. for instance, if the test uses the term
"quarter" as a unit of currency, the test is tied to the US and a few other
countries.

As a matter of fact, I took both the American and English
IQ tests when I took the MENSA tests. My percentile rating
was twice as good on the American test with its dollars
and cents as it was on the English test with its pounds
and shillings. Obviously, those tests are biased. The
English language is a prerequisite, for instance.
--
73, Cecil http://www.qsl.net/w5dxp