What is IQ test and how does it work?

IQ test is composed of a set of questions (logic, reasoning, calculation, perception etc) and measures human intelligence. The score obtained is often used in psychology or during personnel selection in the workplace.

But what does the score you get really say? Is it really indicative of our intellectual abilities? Let's find out together what IQ is, how it is calculated and why it can be useful to know your score.

What is IQ?

The term IQ has its roots in the early twentieth century, when the French psychologist Alfred Binet developed a test to identify students who needed special educational support. This test was later adapted and standardized, giving rise to modern intelligence tests that continue to assess people's cognitive abilities and identify any learning difficulties.

The average IQ score is set at around 100, with a standard deviation of 15 points. This means that the majority of the population taking an IQ test has a score between 85 and 115. Higher or lower values indicate exceptional intellectual abilities or cognitive difficulties, respectively. IQ is also influenced by genetic and environmental factors.

How is it measured?

IQ tests are designed to assess a variety of cognitive abilities, including:

Logical reasoning: The ability to identify patterns and solve logical problems
Mathematical ability: The ability to calculate and understand numbers
Short-term memory: The ability to retain and manipulate temporary information
Verbal ability: The ability to understand and use language
Visuospatial ability: The ability to interpret and manipulate objects in space

The most common IQ tests to measure intelligence include:

Stanford-Binet Intelligence Scales
Wechsler Adult Intelligence Scale (WAIS)
Raven's Progressive Matrices (a widely used nonverbal test)

Interpreting the scores

< 80: possible cognitive difficulties
80-90: below average
91-100: slightly above average intelligence
101-110: slightly above average intelligence
111-120: superior intelligence
121-130: very high intelligence
> 130: exceptional intelligence

Does the IQ test really indicate intelligence?

Many experts point out that the IQ test measures only some aspects of intelligence and does not reflect a person's full potential. Other factors, such as emotional intelligence, creativity, and adaptability, play a fundamental role in personal and professional success. Did you know that there are different types of intelligence?

Why is it useful to know your IQ?

Knowing your IQ score can be useful for:

Identifying cognitive strengths and weaknesses
Improving your skills through specific exercises
Accessing advanced educational programs, if you have a high IQ
Identifying any learning difficulties

You should also know that a very low IQ can be a warning bell of important cognitive disorders.

How to improve your score?

Although IQ is partly determined by genetics, there are some strategies to boost your cognitive abilities in a completely natural way:

Mental training – Solving puzzles, logic games and reading complex texts
Physical exercise – Physical activity improves cerebral circulation and cognitive function
Balanced diet – Foods rich in omega-3, vitamins and antioxidants support brain function
Quality sleep – Adequate rest is essential for memory and concentration
Continuous learning – Studying new languages, musical instruments or disciplines academics stimulates the brain

Myths and Facts about IQ

Does a high IQ guarantee success in life? False! Other factors such as determination and social skills are equally important
Does your IQ score never change? False! Mental training and continuous learning can improve your cognitive abilities
Does IQ measure all forms of intelligence? No! Emotional, creative and social intelligence are not assessed in traditional tests

Conclusion

IQ tests are generally very useful tools to better understand your cognitive abilities, but they should not be considered the only indicator of a person's intelligence.

Investing in improving your cognitive skills and personal development is the key to success in any field of life.

If you want to find out your IQ and get the certificate, try our free test. IQ Master offers an IQ test and you can complete it in a few minutes by answering questions on logic, concentration, attention, memory and more. At the end of the test you will be able to know your results, your level compared to other users and get your printable certificate.