Stratford-Binet

* Today instead of using a mental age, we use what is called a intelligence quotient (IQ). This is a number that shows the difference between ones mental age and their actual age. 

* The intelligence quotient or IQ is an example of a transformed score. This is any score that has been changed from a raw score in a systematic way.

* In 1916, Binet's test was brought to the US and revised by a Stratford student named Louis Terman.