By Inderbir Kaur Sandhu, Ph.D
Q: I am one of student that need your
expertise. I am here to ask about some questions that relevant to IQ.
1. What is IQ?
2. How can we measure IQ?
3. How can we Increase our IQ?
4. Why is IQ important?
5. What is the level of IQ and how we measure it? (anti-genius to
That's all my question. I really hope that you can answer these question
as fast as possible. Thank you.
These questions bring me back to college days - sounds like an
assignment to me especially since you want them as soon as possible!
Hope I meet your deadline ;-). Anyway, here are the answers in brief.
What is IQ?
IQ, short for intelligence quotient, is a score of intelligence that
is determined by one of many standardised tests that are available
today. These scores are mainly used as predictors of performance namely
in educational and jobs. Do note that there are many forms of
intelligence tests; some tests use a single type of item or question for
one strength and some test more than one skill. Most of these tests
yield both an overall score (e.g., the full scale IQ for the Wechsler's
series) and individual subtest scores (for each of the subset in the
test). Whichever way intelligence may be tested, it is noted that IQ
tests attempt to measure the same general intelligence.
How to measure IQ?
The formula to measure IQ is:
Mental Age/Chronological Age x 100 = Intelligence Quotient
Chronological age is your age at the point a test is taken from birth.
Mental age is the age that is a concept in relation to intelligence,
expressed as the age at which a child is performing intellectually. For
the majority of people, the mental age and the chronological age should
be the same. This means, an IQ of 100 would indicate that a child is of
average intellectual capacity. For a gifted child, the mental age is
above the chronological age, and the IQ is higher than 130 (usually two
standard deviation above the mean of 100). In the same way, for an
intellectually challenged child, the mental age is below the
chronological age, and the IQ is usually below 70 (two standard
deviations below the mean of 100).
Till today, there have been many debates whether IQ tests are an
accurate measure of intelligence and to what extent it may or may not be
accurate. In essence, IQ scores represent a very specific type of
intelligence, and depend on the test that is taken.
How to Increase IQ?
To increase your IQ, you need to “feed” your brain. Therefore,
anything that stimulates and uses the muscles of your brain would help.
And practice makes perfect. Please note that one cannot stretch the
intelligence too much in terms of getting very high IQ scores but it is
possible to perform better at tests with good practise that enhances
thinking skills. Read
this link. I found it rather interesting.
Why is IQ important?
IQ is important because based on research, it has been indicated that
general intelligence plays an important role in many significant life
outcomes. Academic success is just one of it. IQ also correlates with
job performance, socioeconomic advancement (e.g., level of education,
occupation, and income), and social pathology (e.g., adult criminality,
poverty, unemployment, dependence on welfare, children outside of
This is why IQ tests can be helpful. It allows test takers to gauge
their abilities. Low IQ scores may not necessarily mean that the person
taking the test is dumb, but helps in indicating that that they may not
possess the sort of raw intelligence needed for a specific programme. At
the same time, high scores also may not indicate high abilities in all
areas, but ones that were tested. IQ tests can be helpful in determining
the kind of job someone may be suitable in which best fits their mental
abilities. Therefore, gauging a person's intelligence with an IQ test is
the best way for them to ensure that they do not waste their potential
and received educational intervention that matches their potential for
the best possible development.
What is the level of IQ?
|Level of IQ/Percentage in
|Superior intelligence. Excellent presumption for creative
and noble activity. Considered geniouses in their era especially
ones with IQ in the higher ranges (150+). Ability to form new
theories/ideas/inventions. E.g., Bill Gates, Stephen Hawking,
other notable world figures who made a difference.
|Exceptionally high intelligence. Mainly individuals who are
top in their field of work(e.g., researchers, professionals)
|High above average. Breezes through college or graduate
school. Great heights in creative and managerial activities.
|Above-average intelligence. Graduates college without
difficulties. Hardworking individuals with this level of
intelligence are able to achieve great heights in the job
|Average intelligence (upper end). Graduates college with
some difficulties but hard work and diligence promises good
achievement as ones in above average category.
|Average intelligence (lower end). Graduates from high school
without difficulties and will probably work well in middle
|Low intelligence. Graduates primary school. Works well
mainly in manual professions/ activities.
|Below average intelligence. Low levels of mental
retardation. Graduate primary school with difficulties but may
be successful in special schools.
|Mental retardation level. Graduates special schools with
support. Able to help themselves and follow daily routines with
or without some support.
Measuring is done with an standardised intelligence test.
I guess I have answered all of your questions. Most of these can be
found if you surf the internet. Please do for further details and
information. Best of luck!