We do? I have never seen IQ used for anything but online wankery. None of my most skilled coworkers have struck me as people outside the bell curve, and we have never had our IQ test results requested, or even measured in most cases.
Intelligence:Knowns and Unknowns
> are used for many purposes, such as selection, diagnosis, and evaluation. Many of the most widely used tests are not intended to measure intelligence itself but some closely related construct: scholastic aptitude, school achievement, specific abilities, etc. Such tests are es- pecially important for selection purposes. For preparatory school, it's the SSAT; for college, the SAT or ACT; for graduate school, the GRE; for medical school, the MCAT; for law school, the LSAT; for business school, the GMAT. Scores on intelligence-related tests matter, and the stakes can be high.
http://differentialclub.wdfiles.com/local--files/definitions...
https://digitalcommons.ilr.cornell.edu/cgi/viewcontent.cgi?a...
Retesting in selection: a meta-analysis of coaching and practice effects for tests of cognitive ability.
Previous studies have indicated that as many as 25% to 50% of applicants in organizational and educational settings are retested with measures of cognitive ability. Researchers have shown that practice effects are found across measurement occasions such that scores improve when these applicants retest. In this study, the authors used meta-analysis to summarize the results of 50 studies of practice effects for tests of cognitive ability. Results from 107 samples and 134,436 participants revealed an adjusted overall effect size of 0.26. Moderator analyses indicated that effects were larger when practice was accompanied by test coaching and when identical forms were used. Additional research is needed to understand the impact of retesting on the validity inferences drawn from test scores.