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Last update: 09/10/2023 09:14 PM

Average IQ by Age group

The average IQ of a population offers valuable insights into cognitive development and potential shifts over the lifespan. This table aims to present a thorough analysis of the average IQ scores across various age groups, highlighting noteworthy patterns and considerations.

High Confidence Level in Data: 1000+
Low Trust Degree Value: <1000
# Age Average IQ Number of responses
#1 26-35 102.24 100000+
#2 19-25 101.47 100000+
#3 36-50 100.17 100000+
#4 ≥50 99.35 100000+
#5 ≤18 98.49 100000+

The Data

As per the collected data, the average IQ scores segmented by age groups are as follows:

  • 26-35 years: 102.24
  • 19-25 years: 101.47
  • 36-50 years: 100.17
  • ≥50 years: 99.35
  • ≤18 years: 98.49

Young Adulthood (19-25 years) vs. Late Adulthood (26-35 years)

An intriguing observation can be drawn between the age groups of 19-25 and 26-35. The latter group demonstrates a slightly elevated average IQ. Various research studies indicate that cognitive abilities might peak in the late twenties to early thirties, potentially attributing to the numbers observed.

Midlife (36-50 years)

The 36-50 age bracket showcases a nominal reduction in average IQ. This can be attributed to several factors including life responsibilities, health changes, or simply natural cognitive evolution.

Seniors (≥50 years)

It's evident that there's a slight decrease in the average IQ score for those aged 50 and above. However, it's imperative to differentiate between raw cognitive processing ability and accumulated knowledge or wisdom. The latter often compensates for any decline in the former.

Youth (≤18 years)

The youngest cohort, those 18 and under, possess the lowest average IQ in this dataset. However, this isn't indicative of their cognitive potential. These are formative years, and with the right guidance, education, and experiences, there's ample room for growth.