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6 conclusions derived from The Bell Curve by Herrnstein1. There is such a thing as a general factor of _______ ability on which human beings differ. 2. All __________ tests of academic aptitude or achievement measure this general factor to some degree, but __ tests expressly designed for that purpose measure it most accurately. 3. IQ scores ______, to a first degree, whatever it is that people mean when they use the word _________ or smart in ordinary language. 4. IQ scores are _______, although not perfectly so, over much of a person's life. 5. ________ administered IQ tests are not demonstrably biased against ______, economic, _____ , or racial groups. 6. Cognitive ability is substantially ______, apparently no less than ___ percent and no more than ___ percent.

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