Brains vs Bias: The Issues with Intelligence Tests

Humans love to measure compare and analyse human intelligence, we have discovered in doing this that it is related to genetics, the environment, education and even randomness, but it is clear that the more we strive to know what we know, the more we figure out we really don’t know much, particularly about intelligence, which is pretty ironic.

To better understand our minds; in 1950 David Wechsler developed two tests, the Wechsler adult intelligence scale (WAIS) and the Wechsler intelligence scale for children (WISC). These assessed vocabulary, similarities between concepts and objects, and patterns in letters and numbers. Unfortunately there is an incredible amount of bias in this, leaving us still uncertain as to how factors play a part in developing a person’s cognitive abilities.