Angela L. Duckworth
Angela L. Duckworth
Psychologist and Science Author 23 December, 2022

Intelligence quotient (IQ) tests are designed to measure cognitive abilities such as problem-solving, critical thinking, and verbal and mathematical aptitude. IQ scores are typically divided into categories, with scores above 130 considered to be in the β€œvery superior” range, scores between 120 and 129 considered to be in the β€œsuperior” range, scores between 110 and 119 considered to be in the β€œhigh average” range, scores between 90 and 109 considered to be in the β€œaverage” range, scores between 80 and 89 considered to be in the β€œlow average” range, scores between 70 and 79 considered to be in the β€œborderline” range, and scores below 70 considered to be in the β€œextremely low” range.

Level of IntelligenceIQ Score Range
Intellectual DisabilityBelow 70
Borderline Intellectual Functioning71-84
Average Intelligence85-114
Above Average Intelligence115-129
High Intelligence130 and above

The specific definitions of these categories can vary slightly depending on the specific test being used, but these ranges are generally accepted as the levels of IQ test scores. It’s important to keep in mind that the average IQ test score is typically set at 100, with scores above and below this mean considered above or below average.

One tip for improving your cognitive abilities is to engage in activities that challenge your brain. This can include activities such as reading, puzzles, and games that require problem-solving and critical thinking skills. It can also be helpful to learn new things and expose yourself to new experiences, as this can help to stimulate brain development and improve cognitive function.

It’s important to keep in mind that an IQ test is just one measure of intelligence and that there are many other factors that contribute to a person’s cognitive abilities. Additionally, it’s important to remember that IQ scores are not a fixed trait and can change over time through learning and other life experiences.

In conclusion, the levels of IQ test scores are typically divided into categories ranging from very superior to extremely low. The average IQ test score is typically set at 100, with scores above and below this mean considered above or below average. Engaging in activities that challenge your brain and exposing yourself to new experiences can help to improve cognitive function.

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University of Pennsylvania - Psychology Harvard Department of Psychology Oxford Department of Experimental Psychology Cambridge University Press & Assessment