Two questions here: 1) What is "g"? "g" is "general intelligence." IQ is a specific measurement of g. https://en.wikipedia.org/wiki/G_factor_(psychometrics)

Two questions here: 1) What is "g"? "g" is "general intelligence." IQ is a specific measurement of g. https://en.wikipedia.org/wiki/G_factor_(psychometrics) https://en.wikipedia.org/wiki/G_factor_(psychometrics) 2) What is g-"loaded"? This is a good summary: https://www.reddit.com/r/cogsci/comments/j5pug9/comment/g7u4tfc https://www.reddit.com/r/cogsci/comments/j5pug9/comment/g7u4... "it's the degree to which that test correlates with g. A relatively high g-loaded test will have a higher correlation with g, meaning that performance on the test is more indicative of g than performance on a test that is less g-loaded. Often greater complexity or how much mental manipulation a test requires results in a higher g-loaded test. In contrast, higher difficulty (as measured by the percentage of people who fail) does not always mean higher g-loading. For instance, tests of reasoning are generally more g-loaded than tests of rote memorization even when the tests are of equal difficulty." - oscarjeff on Reddit