Full form of IQ is Intelligence Quotient

A standardized score derived from specially designed tests that aim to measure aspects of human cognitive ability such as reasoning, problem solving, memory, and verbal comprehension. The score is calculated by comparing an individual's performance to that of a broader population, typically with an average set at 100. It is widely used in psychology and education to assess intellectual potential and learning capabilities.

It plays a role in academic placement, cognitive research, and certain professional evaluations, where understanding mental aptitude can inform decisions about learning support or job suitability. Psychologists rely on carefully structured testing methods to ensure consistency and comparability across individuals.

Its relevance lies in offering a quantifiable way to evaluate specific cognitive functions, though it does not capture the full spectrum of intelligence. Factors such as creativity, emotional understanding, and practical skills fall outside its scope, making it one of several tools rather than a complete measure of a person's abilities.