"Despite the overwhelming consensus among psychometricians and human geneticists that large, systematic differences in average intelligence levels exist between the races of mankind and that a major component of these differences is genetic, publication of The Bell Curve, a popular book by experts in the science of intelligence that had the temerity to say so, was greeted with a huge outcry, accusations of racism, and a manufactured controversy over a set of propositions that are, in fact, not controversial among experts in the field." - Kevin Langdon, Review of Emotional Intelligence, by Daniel Goleman, Noesis #145, November 1999.
A psychometrician is someone who puts psychometrics into practice. They come up with personality or psychological attributes and then somehow magically figure out how to quantify and measure them. Psychometrician's make psychological tests for example.
And it's just a great all around word!
"The out of work psychometrician got a job working for the College Board making bogus tests to determine the futures of younger generations."