GITNUX MARKETDATA REPORT 2024

Statistics About The Average Iq Of Someone With Down Syndrome

The average IQ of someone with Down Syndrome is typically around 50, which is significantly lower than the general population.

Last Updated: June 18, 2024

Written & Summarized by: Jannik Lindner

How we write

In this post, we explore a wide range of statistics regarding the cognitive abilities and IQ levels of individuals with Down syndrome. From average IQ levels to developmental milestones and unique strengths, these statistics provide insight into the diverse abilities and challenges faced by this community.

Statistic 1

"The average IQ of a young adult with Down syndrome is 50, equivalent to the mental ability of an 8- or 9-year-old child."

Statistic 2

"Approximately 1 in 10 children with Down syndrome score above this average IQ level."

Statistic 3

"The IQ range for an individual with mild intellectual impairment, including many with Down Syndrome, is typically 50 to 70."

Statistic 4

"About 8 in 10 children with Down syndrome develop communication skills in line with non-verbal IQ levels."

Statistic 5

"Individuals with Down Syndrome frequently have strengths in visual learning and social engagement, which deviates from their overall IQ score."

Statistic 6

"The IQ range for someone with moderate Down Syndrome is typically 35 to 49."

Statistic 7

"About 1% of individuals with Down syndrome have an IQ in the mild intellectual disability range (50-70) when tested in adulthood."

Statistic 8

"Children with Down Syndrome tend to meet developmental milestones at an age-appropriate level with their IQ scores."

Statistic 9

"Most individuals with Down Syndrome fall within the "mild to moderate" range of cognitive impairment."

Statistic 10

"The majority of adults with Down syndrome achieve an IQ equivalent to that of an average 9-year-old child."

Statistic 11

"Adults with Down Syndrome have an IQ range between 30 to 60."

Statistic 12

"Approximately 50% of children with Down Syndrome may also have hearing impairment affecting their IQ and learning abilities."

Statistic 13

"By adolescence, peers of individuals with Down Syndrome often surpass them in cognitive abilities."

Statistic 14

"More than 50% of children with Down syndrome are able to learn and read, which might enhance their IQ level."

Statistic 15

"Approximately 80% of adults with Down syndrome have an IQ in the mild to moderate range of intellectual disability."

Statistic 16

"The cognitive development in children with Down Syndrome is quite variable, with IQ scores ranging from 30 to 70."

Statistic 17

"Cognitive improvement in some individuals with Down syndrome can outpace their chronological age."

Statistic 18

"Increases in IQ among individuals with Down syndrome has been observed alongside better education and social support."

In conclusion, individuals with Down syndrome exhibit a wide range of cognitive abilities, as reflected in the variability of their IQ scores. While the average IQ falls around 50, with most individuals falling within the mild to moderate range of intellectual disability, there are instances of both higher and lower IQ scores among this population. Communication skills often align with non-verbal IQ levels, and strengths in visual learning and social engagement can deviate from overall IQ measures. Cognitive development in children with Down syndrome is variable, with some individuals showing cognitive improvement beyond their chronological age, particularly with better education and social support. Hearing impairment can also impact IQ and learning abilities in a significant portion of children with Down syndrome.

Jannik Lindner

Jannik is the Co-Founder of Gitnux and has been working in the digital space since 2016. He is specialized in content and tech.

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