Intelligence test 20 questions. The shortest intelligence test, it has only three questions. How celebrities passed IQ tests

Get it together, now you have to pass the world's shortest intelligence assessment test! It is called Cognitive Reflection Test (CRT), that is, a test of cognitive reflection. It was invented by Yale University professor Shane Frederick to assess how a person is able to perceive complex, which at first glance seems simple.

So let's go!

Question 1

A baseball bat and ball cost $1.10 together. The bat costs $1 more than the ball. How much is the ball worth?

Question 2

5 machines produce 5 things in 5 minutes. How long does it take 100 machines to produce 100 gizmos?

Question 3

The pond is overgrown with water lilies. Every day their area doubles. The entire lake will be overgrown in 48 days. How many days will the flowers absorb half of its surface?

And now the correct answers

Answer 1

How much did you get - 10 cents? Like most hurried people who considered themselves too smart for such a simple question. Judge for yourself: if the ball really cost 10 cents, and the bat cost a dollar more, then it alone would cost ten dollars, and this is the total cost of the items. In fact, the price of the ball is 5 cents.

Answer 2

Did you succumb to the temptation and automatically answer “100”? In vain, the question was a trick. In fact, it takes a hundred machines to produce a hundred things the same amount of time as it takes five units to create five things. That is 5 minutes. From a change in the number of machines, the time for making gizmos does not change!

Answer 3

Oh, how many of them - those who answered "24 days" - have sunk into oblivion! You too? Do not be sad, this question is the pinnacle of the test. Let's think logically: if every day the area of ​​\u200b\u200bthickets doubles, then they will occupy half the surface of the pond a day before the expiration of the 48-day period required by the flowers in order to completely cover the reservoir. That is 47 days.

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IQ tests - KNOW YOUR INTELLIGENCE LEVEL!

We have collected BEST FREE IQ TESTS . In the allotted time, answer all 40 questions and identify your strengths and weaknesses. Make the intellect your main ally to achieve your goals!

Choose any of the IQ tests below and get to work. Good luck!

Looking for free texts on intelligence? You found them! Typically, the structure of each "IQ" test is a list of questions, including and quite simple tasks, and very complex. For example, the test subject is asked to cope with tasks that will help determine the quality of your spatial and logical thinking. We have prepared a whole series of tests for you. Choose any free IQ test (we do not charge paid ones :) and start brainstorming! You will succeed!

How celebrities passed IQ tests

What is this mysterious “IQ Test”?

All people are different. Therefore, it is not surprising when one person has a more developed level of intelligence in comparison with another. Each of us has a certain idea of ​​our capabilities. But how exactly do you measure them? In this case, in most developed countries of the world, it is the IQ test, expressed in points, that comes to the rescue.

Translated from English, the abbreviation IQ means "intelligence quotient". This indicator is a quantitative assessment of the level of intelligence of an individual in comparison with the same indicator belonging to the average person of the same age as the subject. You can determine Aikyu by passing the tests presented above, which (as experts point out), although they do not assess the knowledge that an individual has, they determine his mental abilities. Our IQ tests are free chances to find out how developed your intelligence is!

The structure of each IQ test is a list of questions that are both simpler and more difficult. The subject is invited to cope with tasks related to determining the quality of spatial and logical thinking in humans. Variations of questions are very different. As practice shows, the higher the experience of passing these tests, the better the results. The Eysenck test has become the most famous among such tasks “on IQ”.

Scientists note that half of the people have an IQ in the range of 90-110 points, the rest are either below 90 or above 110 (about 25% each). According to American researchers, the average score for this test among university graduates is 105 points. For excellent students, it is 130-140. It is believed that work on improving mental abilities is necessary when the IQ is below 70.

In recent years, IQ tests have gained incredible popularity among the entire population of the planet. They are used everywhere: when applying to universities and colleges, in job interviews, when passing driver's license exams, and so on. Russia also did not stand aside. The population of our country is entirely interested in knowing the level of their own intelligence, which is why many residents try to learn as much as possible about tests to determine intellectual abilities and are not averse to passing them. A big plus of such tests for determining intelligence is their availability. If you search the Internet for IQ tests, you will certainly find free ones. Moreover, not all of them will be correctly compiled. The uniqueness of our site is that we give the opportunity not only to take a free IQ test, but to try to pass the test, which was compiled by an experienced specialist. So we have real IQ tests.

It is worth noting that the average IQ of the population of a given country depends on the efficiency of the state machine and the level of the gross domestic product. In addition, a study was conducted that found the relationship between the factor of social intelligence and the average results in the Unified State Examination (foreign analogue of the SAT).

IQ Tests: How They Are Built

There are other types of questions as well. As practice shows, the higher the experience of passing these tests, the better the results. The most famous among such tasks was the Eysenck test. good accuracy demonstrate tests bearing the names of their creators: D. Wexler, J. Raven, R. Amthauer and R. B. Cattell. At the same time, to date, no one has yet introduced a single standard that existing IQ tests would adhere to.

All tests are divided into age groups in order to give an accurate assessment of the intellectual development of a person, corresponding to his years. In other words, the results of IQ tests can be the same - for example, a child of 11 and a master of mathematics. This is because they are equally developed for their age. If you take the Eysenck test, the creator developed it to determine the level of intelligence in people over 18 years old.

History of IQ and what influences it

Back in 1912, the German scientist Wilhelm Stern for the first time presented to the general public the concept of “intelligence quotient”, unusual at that time. In carrying out his research, he turned his attention to the shortcomings inherent in one of the indicators of the Binet scales, namely, mental age. To determine an accurate assessment of an individual's intelligence, Stern proposed dividing the mental age by the present age (also called chronological age), and taking the remainder of this operation.

The first appearance of the term IQ dates back to 1916, when it was used in the Stanford-Binet scale. But today (perhaps due to the greatly increased interest among the population in IQ indicators) there are several other scales, the validity of which has not been proven. Therefore, it is now quite difficult to compare the results shown by different tests. Therefore, psychologists often recommend referring to classical tests to determine the coefficient of intelligence development. These are the tests we have selected for you.

Causes affecting the IQ score

Naturally, one of the main reasons that have a serious impact on the level of IQ is heredity. The main emphasis in ongoing research on determining the relationship between these two indicators was placed on children. The results of these studies was a fairly strong spread in the testimony: some scientists stated that IQ depends on the available genes by less than half; while others even cited data reporting almost one hundred percent dependence. The rest that could affect the results of IQ tests is environment and environment, as well as all sorts of errors inherent in such measurements. That is, according to such studies, it turns out that the level of IQ largely depends on hereditary genes.

Another reason that affects IQ scores is individual genes (brain activity ordinary person depends on about 17,000 genes). Research shows that individual genes affect an individual's existing IQ level, but in fact, such an effect does not have a strong effect. Such a dependence, revealed in the course of the ongoing research, turned out to be at the level of a statistical error.

At the moment, studies have begun to look for differences in the genome in people with high and low IQ levels. If someone manages to find out the genetic causes of "braininess", then perhaps there will be a tool that allows you to increase the level of IQ in a person. States with such knowledge will move ahead faster in terms of economic and technological development.

The third reason that can affect the level of IQ is the environment. Of course, everything that is around a person (especially the family) has an impact on his development. In the course of research, many factors of such dependence have been identified. They included family income, the size of the house and its price, the developing relationships between all family members, and so on. This dependence is characterized by a coefficient equal to 0.25-0.35. But as a person grows older, this influence gradually decreases until it reaches zero at about the age of majority (these studies concerned only complete family where there are two parents and two children).

Improper nutrition can also tell on the level of development of IQ. Thus, recent studies have shown that eating fish products by a pregnant woman has a beneficial effect on the intellectual development of her unborn child.
Another study, involving about 13,000 people, determined that breastfeeding also has a positive effect on the infant's intelligence. True, it should be noted that immediately after the publication of this study, it was criticized. The reasons for the scientific "attack" were an incorrect analysis of the data obtained, a complete disregard for existing theories.

IQ Differences by Human Groups

According to most experts, on average, there is no significant difference in the level of intelligence development between men and women belonging to the same age group. But it is in the male population that the most striking variation in this indicator is observed: that is, a lot of men with high level intelligence and also a lot of those whose IQ is quite low. In addition, this indicator is expressed in women and men a little differently. This is especially noticeable after five years. Upon the onset of this age, boys begin to show superiority over the beautiful half of humanity in terms of spatial intelligence and manipulation. Girls show better verbal functions.
Leadership in the field of mathematical abilities also departs to men. One of the American researchers came to the conclusion that for every 13 men with excellent mathematical abilities, there is only one woman equal to them.

Racial differences

Numerous studies have been conducted to identify differences in the average level of IQ among residents of the United States of America led to the following conclusion: for the representatives of the African American population, this indicator was equal to 85 points, for Hispanics - 89, for the white race - 103, for the Asian - 106, and for the Jewish - 113.

Wherein average level IQ, if we look at test data from half a century ago, shows some changes. So, today, the IQ of the Negroid race in 1995 corresponds to the IQ of white people who lived in 1945. Therefore, it seems impossible to “blame” everything on the genetic characteristics of people.

It is not necessary to dismiss such an important factor as the influence of society on the development of intelligence. This is especially noticeable in orphans. For example, in the same USA, the IQ level of children whose upbringing was carried out by representatives of the white race is about 10% higher than that of those who lived in a black family. And in the UK, the difference is even more interesting: in boarding schools, black children have a higher IQ than their white peers.

In the course of research, scientists have discovered a pattern that lies in the existing difference in the average level of IQ between residents of different countries. According to certain data, this indicator is affected by the current size of the GDP, the practical use of democratic principles, the levels of crime and the birth rate of the population, the percentage ratio between believers and atheists. In countries belonging to the developing group, in addition to the above reasons, it also affects the average level of IQ and poor nutrition, coupled with numerous diseases. In this regard, we ask you to familiarize yourself with an interesting map ...

Relationship between health, age and IQ

A properly composed diet, especially in the early stages of human development, has a beneficial effect on the development of intellectual abilities. An example is the iodine deficiency factor in the body: in its presence, the average IQ score decreases by 12 points. Those who have a sufficiently high IQ live longer and get sick less often.

IQ acts as a measure of a person's intellectual abilities, which reach their maximum values ​​at 26 years of age. Then they gradually decrease.

The IQ of an adult, to a greater extent than that of children, is determined by genetic heredity. In the latter, this indicator is influenced by the environment. Some children, due to certain life characteristics, are initially ahead of their peers in terms of intelligence, but over time their indicators level off.
School success

Representatives of the American Psychological Association noted that children whose results on IQ tests have high rates are much better at absorbing the material presented at school than those who received lower scores. Such a correlation reaches 0.5. Intelligence tests allow pre-selected naturally gifted children to teach them in a separate, accelerated program.

Income, frompropensity to crime and IQ

Part of the research on the impact of IQ on human performance shows that higher intelligence increases the productivity of an individual - and his income increases accordingly. Moreover, this indicator does not depend on the social environment of a person, including his family.

The American Psychological Association in one of its reports noted that the level of intelligence has little to do with a person's propensity to commit crimes. The correlation in this case is only 0.2. It is important to note here that causal relationships are indirect. That is, poor school performance is not always explained by a low level of IQ, but it often influences the possibility of a person becoming a criminal.

Arthur Jensen cites information according to which the largest percentage of crimes occurs in people with IQs ranging from 70 to 90 points.

Scientific achievements, etc.mining activity

According to some studies, it can be concluded that success in the scientific field of activity is more dependent on such character traits as purposefulness and innovative thinking. But Dr. Eysenck cites other data, according to which the level of intelligence of successful scientists is lower than that of their colleagues who received the Nobel Prize. The average IQ test scores were 166. At the same time, some scientists demonstrated the highest possible level, equal to 177 points. Spatial IQ was 137 points according to the scientist, although at a younger age it should have been higher. And the mathematical average IQ is 154.

Two scientists, Frank Schmidt and John Hunter, came to the conclusion that with an equal amount of experience, the person with the higher IQ will be more productive. According to the researchers, the development of intelligence has an impact on all types of human activity, but its level differs depending on the chosen field of activity. From this we can conclude that a job that involves long-term brain work will not be available to those who have a low IQ. And at the same time, activities associated with physical activity will not be seriously affected by the size of this coefficient.

Some examples of tests from the book by Hans Eysenck and Derrin Evans "IQ Tests for Identifying Talents (10 to 15)". The annotation to the book says: "Tests will help parents determine the level of intelligence of the child, identify his abilities and talents, understand in which area of ​​​​knowledge he will show himself best, select the optimal training program, and guide the child when choosing a profession."

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IQ tests to identify the talents of children from 13 to 15 years old

Logical thinking.

Is the last statement true or false? Underline what is needed.

1 All pencils are cupboards, and all phones are pies. All buffets are telephones. Therefore, all buffets are pies.

2 All ducks have green beaks and some of the chairs speak French. If all the ducks speak French, then all the chairs have green beaks.

3 All parrots are basins, and some chessmen- vegetarians, so there are no vegetarians among the basins.

4 All wheels are trees, and all grapes have three legs. If some wheels play billiards and all wheels have three legs, then some grapes play billiards.

5 All dice can fly backward, and some cards can fly forward. All bananas wear glasses. If all cards are dice and some bananas can fly backwards, then some dice are glasses.

6 Alik is taller than Petya. Masha is shorter than Petya. So Alik is lower than Masha.

7 Lisa is below Genes. Kolya is taller than Sasha. Lisa is taller than Kolya. So Sasha is taller than Liza.

8 Misha is older than Zhora. Anya is younger than Sasha. Only one of the guys is older than Misha. Anya is older than Zhora. So Sasha is the oldest.

9 Paul is older than Martin. David is younger than Martin and Tony. Sarah and Tony are older than Martin. So David is older than Sarah.

10 Rachel and Bruce are older than Harry. Harry is younger than Larry. Fiona is older than Bruce. Harry is older than Louise. Fiona is younger than Rachel. So Rachel is older than Bruce and Larry is older than Louise.

Perception

Are the following pairs of words spelled the same or differently?

1 MULTI MILLIONAIRE MULTI MILLIONNER

2 HUMANITARIAN

3 HERALDIC HERALDIC

4 DENDROCHRONOLOGY DENDROCHRONOLOGY

5 REPAIR REPAIR

6 SIXTY-YEAR-OLD SIXTY-YEAR-OLD

Underline all consonants followed by vowels and all vowels followed by consonants.

1 N C F C I A N U Y E D X F I T D R A A

2 B N M U I O I O I O A E O W V T I P

3 H X C WB N M E U I O U I D X E W A X

4 A H H L K F U I K F U R A R E R T Y U

Underline all even numbers followed by odd numbers and all odd numbers followed by even numbers.

1 2 3 4 2 9 8 6 5 1 2 1 2 1 3 5 7 3 4 2 8 6 2 1

1 7 9 7 5 7 4 3 5 7 9 5 3 2 4 8 0 6 4 3 5 7 8 5

2 4 6 5 3 4 7 8 0 9 9 6 5 4 3 7 9 9 2 4 4 3 4 2

6 9 6 5 5 7 8 6 6 7 6 5 4 7 9 7 6 4 0 2 2 9 0 2

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