What’s your dark core score?
Over 100 years ago Charles Spearman made two monumental discoveries about human intelligence. First, a general factor of intelligence (g) exists: people who score high on one test of intelligence also tend to score high on other tests of intelligence. Second, Spearman found that the g-factor conforms to the principle of the “indifference of the indicator”: It doesn’t matter what test of intelligence you administer; as long as the intelligence test is sufficiently cognitively complex and has enough items, you can reliably and validly measure a person’s general cognitive ability.
READ FULL ARTICLE: https://blogs.scientificamerican.com/beautiful-minds/the-dark-core-of-personality/