The More a Person Smokes the Lower IQ Has
Jessica Miller | February 25, 2010
An intelligence quotient or IQ is a score derived from one of several different standardized tests intended to detect intelligence. Usually IQ scores are used in various situations: as predictors of educational achievement or additional needs, by social scientists who study the distribution of IQ scores in populations and the relationships between IQ score and other variables, and as predictors of job fulfillment and income.





























