What’s your Intelligence Quotient (IQ)? Has knowing—or not knowing—this number made any difference in your life?
Likely you have taken several IQ tests during your lifetime. Perhaps you have not made any particular decisions based on your IQ, but maybe others have. For example, maybe your IQ was measured while you were in elementary school and the resulting number was used to decide whether you were eligible to be in a Talented and Gifted program or a Special Education program.