Discover how average IQ scores vary by age, what influences IQ over a lifetime, and why understanding these changes can help in personal development. This comprehensive guide breaks down IQ trends …

Jan 1, 2026 · From childhood through young adulthood, the average IQ score increases and peaks between ages 18 and 29, then gradually declines with age. The results closely match last year’s data …

For adults between 18 and 19 years of age, the average IQ score is 105, which also denotes “normal or average intelligence.”

Experts used to believe that intelligence stabilized at 10 years old. However, recent studies have found that IQ can move up to 20 points during the teenage years.

However, it’s possible to approximate the average IQ by age for adults, adolescents, and children. You will find some of these approximations, covering average IQ by age, both for men and women, below.

Aug 17, 2024 · Explore the average IQ of all age groups and see the range of IQ classified by the experts with the interpretation of IQ scores.

Sep 22, 2023 · The IQ range for 8-year-old females, as with all children, could potentially be anywhere on the IQ spectrum, though the majority fall between 85 and 115. Scores under 70 may indicate …

Oct 29, 2025 · Check the average IQ score by age for 2025 – explore updated global data, IQ distribution charts, and key intelligence insights.

Jan 8, 2022 · There isn’t any actual data on the average IQ score by age for those below 16 years old. However, professionals frequently use the Fifth Edition of the Wechsler Intelligence Scale for …

Dec 3, 2024 · The average IQ for an 8-year-old child is 100, according to the Wechsler Intelligence Scale for Children (WISC-V), a widely used intelligence test. This score indicates that the child’s …