What are the psychological conclusions related to IQ?

For a specific person, there is an innate "intelligence" upper limit, that is, even if all the factors are optimized the day after tomorrow, it is impossible to exceed it. Western psychology and anthropology have studied this for a long time. At present, the accepted conclusion is:

There is an innate and fundamental factor in human intelligence, that is, the ability to extract common laws from scattered and incomplete observation data (pattern recognition), which is called G factor.

This ability is impossible to learn. Of course, it takes learning and training the day after tomorrow to give full play to the innate potential. This process and effect is called G-loading. G load is limited, and the marginal effect will be lost when learning and training to a certain extent. At this time, the real G factor is expressed.

G factor can be measured by carefully designed questions, and the measurement results of the same set of questions (after removing G loading effect) can achieve high repeatability.