IQ researchers seem like they miss a big issue. Testing children (age 11 for example) is really really dumb. Children are still developing and coming into being. If there are psychological burdens for the child during the test they won't do as well and then the "IQ test givers" would declare the child inadequate (family issues, abuse, food/shelter worries, bullied in school, other anxieties). Even for adults, try taking an IQ test when you have diarrhea, or don't feel well. This "doctor of IQ" should go back in time, be abused as a child, or pollute his brain and body with "pharma drugs", or agent orange, or fruit roll-ups, or have devestating circumstances to his life and then try to claim the same BS about IQ. The IQ tests have changed over the past 100 years because society has consistently found them to be flawed. "Regatta" - yup Lex, you must be on the left side of the bell curve.