The test was soon used to classify people in other ways

And that left the door open for people to use the test in service of their own preconceived assumptions about intelligence.What started as a way to identify those who needed academic help quickly became used to sort people in other ways,often in service of deeply flawed ideologies.One of the first large-scale implementations occurred in the United States during WWI, when the military used an IQ test to sort recruits and screen them for officer training.