Levels of Intelligence

Intelligence is the ability to learn, solve problems, and adjust to new situations. Psychologists often measure intelligence using IQ. (Intelligence Quotient) tests that provide a comparative score.

The table below shows how people are grouped based on their I.Q. scores:

• A higher I.Q. usually means better abstract thinking, problem-solving, and learning skills.
• I.Q. scores compare an individual to a reference group, not to an absolute standard.
• I.Q. categories and meanings can vary by the standards and test used.

• Economic and social background can influence average I.Q. scores in groups, but intelligence is not only determined by these factors.
• I.Q. is a tool to compare people’s abilities, but it does not define a person’s worth or all of their talents.
• People with similar I.Q. scores might not always have the same abilities, as situations and opportunities also matter.

Engineers, doctors, and scientists often have high I.Q. scores, while many artists, athletes, and business leaders show intelligence in other important ways. Intelligence is not only about test scores, but also problem-solving, creativity, and adaptability.

• I.Q. Ranges:A person with an I.Q. of 0–25 is classified as an Idiot, 25–50 as an Imbecile, 50–70 as a Moron, 70–80 as Borderline, 80–90 as Low Normal, 90–100 as Normal, 110–120 as Superior, 120–140 as Very Superior, and 140 and above as Near Genius.
• Relative Measure: I.Q. is comparative, not fixed—depends on test norms.
• Socioeconomic Link: A Higher IQ is often seen in higher economic groups.
• Age Factor: Same I.Q. over time doesn't mean the same rank in the group.
• Limitations: I.Q. shows ability, but not full potential or worth.