William Stern, the Creator and Fiercest Critic of the Concept of IQ

  Have you ever been given an IQ test? Have you had to complete a psychometric test in a selective process? There are various instruments for these purposes, from the Wechsler Adult Intelligence Scale (WAIS) to the challenging Raven’s Progressive Matrices (RPM) test. All of these resources are intended, not only to show us how efficient we are at a cognitive level. They also classify us on our supposed social abilities. For example, think about the Mensa association. It’s a community into which only people with high abilities and who exceed the 98th percentile can enter. In fact, evaluating IQ…