08 Intelligence

What is the expected value of intelligence? In which range does the IQ of 68% of the population fall?

The average IQ is 100, and about 68% of the population has an IQ between 85 and 115.

What is the “g-factor”?

The g-factor is the general intelligence factor proposed by Charles Spearman, representing overall mental ability that influences performance across different cognitive tasks.

What is the difference between crystallized and fluid intelligence?

Crystallized intelligence refers to accumulated knowledge and skills gained through experience, while fluid intelligence is the ability to solve new problems and think logically without prior knowledge.

Which areas of life are associated with IQ?

IQ is associated with academic achievement, job performance, problem-solving ability, health outcomes, and income.

Are there ways to increase IQ, and if so, how?

IQ can be improved to some extent through education, cognitive training, healthy nutrition, physical exercise, sufficient sleep, and stimulating environments.