| Q. Can you really tell anything about
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| | any person at any age.
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| someone's intelligence by having them
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| | So, what (if anything) can be deduced
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| take an IQ quiz?
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| | about a person based upon the results of
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| A. The answer to this question requires a
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| | an IQ quiz?
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| bit of background information, so let me
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| | According to an article "The General
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| put my professor hat on and tell you a
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| | Intelligence Factor", Scientific American
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| story.
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| | Presents "Exploring Intelligence", pg.
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| An IQ quiz measures a person's
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| | 24, 1999, author Linda Gottfredson
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| Intelligence Quotient (IQ). IQ is
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| | writes:
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| calculated using this formula: IQ = 100
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| | "Adults in the bottom 5% of the IQ
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| MA/CA where MA = Mental Age and CA =
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| | distribution (below 75) are very
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| Chronological Age.
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| | difficult to train and are not
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| The IQ test was originated back in 1905
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| | competitive for any occupation on the
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| by French psychologist Alfred Binet and
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| | basis of ability. Serious problems in
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| his physician research partner Dr.
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| | training low-IQ military recruits during
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| Theodore Simon. These two guys came up
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| | World War II led Congress to ban
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| with the "Binet Simon Test". This test's
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| | enlistment from the lowest 10% (below 80)
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| purpose was to measure the intelligence
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| | of the population, and no civilian
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| of retarded children.
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| | occupation in modern economies routinely
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| The test was based upon several
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| | recruits its workers from that below-80
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| observations:
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| | range."
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| 1. Children grow more mentally capable as
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| | "Current military enlistment standards
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| they grow older
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| | exclude any individual whose IQ is below
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| 2. Some children perform at higher grade
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| | about 85." "Persons of average IQ
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| and age levels than their actual grade
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| | (between 90 and 100) are not competitive
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| and age level. While other children are
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| | for most professional and executive-level
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| just the opposite.
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| | work but are easily trained for the bulk
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| The mental age (MA) portion of the
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| | of jobs in the American economy. By
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| formula is the age level that the child
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| | contrast, individuals in the top 5
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| is found to perform at. For example, a
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| | percent of the adult population can
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| 6-year-old who performed at the level of
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| | essentially train themselves, and few
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| an 8-year-old, is assigned a MA of 8 and,
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| | occupations are beyond their reach
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| of course, a CA of 6. Conversely, an
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| | mentally." "People with IQs between 75
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| 8-year-old, who performed at the level of
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| | and 90 are 88 times more likely to drop
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| a 6-year-old, is given a CA of 8 and a MA
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| | out of high school, seven times more
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| of 6. With me so far? If you are then
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| | likely to be jailed, and five times more
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| you've already passed my IQ test because
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| | likely as adults to live in poverty than
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| I'm starting to get confused and I'm the
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| | people with IQs between 110 and 125. The
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| one who is writing this article!
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| | 75-to-90 IQ woman is eight times more
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| 3. Binet and Simpson also discovered that
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| | likely to become a chronic welfare
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| these gaps between MA and CA grew wider
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| | recipient, and four times as likely to
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| as the children aged. Our child who had a
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| | bear an illegitimate child than the
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| MA of 8 when he was 6, was found to have
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| | 110-to-125-IQ woman."
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| a MA of 12 by the time that he reached
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| | Wow, those are some pretty dramatic
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| age 8. Conversely, the child who had a MA
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| | conclusions that are based solely upon IQ
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| of 6 when he was 9, had a MA of 8 when he
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| | as determined by an IQ quiz. If you
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| reached 12.
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| | believe what Ms. Gottfredson writes, then
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| 4. They also noticed that although the MA
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| | the answer to your question of "Can you
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| CA gap widened as the children grew
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| | really tell anything about someone's
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| older, the ratio of MA:CA remained
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| | intelligence by having them take an IQ
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| constant. This constant ratio was called
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| | quiz?" is: It would appear so. Like any
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| the "Intelligence Quotient".
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| | quiz, however, don't feel too bad if you
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| The IQ quiz, or IQ test, was developed as
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| | "fail" an IQ Quiz. Some people just suck
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| a way of determining the MA:CA ratio of
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| | at taking tests!
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