Is Having a High IQ Score Important?
Modern IQ testing, or intelligence quotient testing, has been around since the nineteenth century. While the methods have varied over the years to finally create a concise and accurate IQ test, there are still a variety of different testing methods. The most accurate IQ tests assess mental capabilities from several broad categories which are then broken down into a large number of narrow mental abilities. The broad categories of mental intelligence include the following: fluid intelligence, crystallized intelligence, quantitative reasoning, reading and writing ability, short-term memory, long term storage and retrieval, visual processing, auditory processing, processing speed, and reaction speed.
Not every modern IQ test that’s available today will cover each and every one of these broad categories. However, the best tests include as many categories as possible to get a full scope of intellectual abilities. While many intelligence tests will still give an overall IQ score in the results, they generally break the scores down into the categories that were tested. Reading the results of an IQ test can actually be a little confusing if you’re not familiar with the test and how IQ scores are calculated.
Averages: The Basis of IQ Scores
The most important thing you should know is that IQ scores are based on averages. A score of 100 is considered the average IQ score of the general population. Any IQ scores above 100 are above average and scores below 100 are considered below average. The majority of people, fifty percent of the population, should score near 100 on an IQ test. That means that twenty five percent should score below 100 and twenty five percent should score above 100. It is also accepted that ninety five percent of the population should score within two standard deviations of the mean. In this case, one standard deviation is 15 points. That means that ninety five percent of the population should have IQ scores that fall between 70 and 130. To give you a clearer understanding of high IQ scores are ranked, generalized IQ score ranges may be helpful.
A score above 130 is considered very superior and approximately two percent of the population can claim these scores that are often associated with genius level intelligence. An IQ score between 120 and 129 is considered superior. Scores between 110 and 119 are considered high average, with 90 to 109 being considered average. IQ scores between 80 and 89 are low average. Scores between 70 and 79 are considered borderline, with scores below 70 being considered extremely low and are often associated with mental retardation.
This type of scoring system should not be confused with the typical percentage scoring that most schools use. For example, in percentage scoring 8 correct answers out of 10 yields an 80% on a test. Sometimes IQ score results are displayed as percentiles, which is completely different than giving a percentage test score. IQ percentiles indicate the percentage of the population that you are smarter (or in some cases less smart) than. For example, a score of 100 gives a 50th percentile ranking, meaning the test taker is brighter than fifty percent of the population. A score of 80 indicates that the test taker is in the 9th percentile or outscores nine percent of the population. And a score of 120 indicates the 95th percentile, meaning the test taker is brighter than 95 percent of the population.
These boundaries and ranges are not definitive. That means that falling one point below “average” does not mean the test taker automatically falls into the low average category. There are many factors that IQ tests can’t consider and a single point is not enough to make an accurate distinction in the different levels of scoring. Instead, the scoring system should be used more like a generalized guideline to be used as a tool and not as a scientifically supported fact.
What is the Reason for an IQ Score?
But what is the point of an intelligence test score? We can take the test, but when can we do with the information? It is thought that China first began mental testing with their Imperial Examination, which was aimed to find the best administrative officials. But modern testing began in nineteenth century France and was aimed to discern children of inferior intelligence from the rest, so that the children could be placed in special schools that offered more individual attention. This is still a very useful tool and today we use intelligence testing to place children of superior intelligence in more vigorous academic settings and children with inferior intelligence in specialized classrooms for individual attention.
The measure of IQ can also help predict possible career paths that people may take. Keep in mind that this is not a very definitive tool and is actually a generalized model. Typically, professors, research scientists and top civil servants have IQ test scores near 140. At an IQ score of 130, we typically see physicians, surgeons, engineers, and lawyers. Teachers, accountants, managers and pharmacists often have IQ scores near 120. Policemen, electricians, salesmen and clerks are often seen near 110. IQ scores ranging from a little over 100 to 90 often include laborers, carpenters, cooks, machine operators and welders. Again, this is simply a generalization and does not imply for example, that all pharmacists have an IQ score of 120. Career paths are not driven only by factors of intelligence. Often, they are driven by a combination of personality type, personal experiences, social class as well as intelligence.
IQ tests have also been very important tools for socioeconomic research, with their results providing important information about the heritability of intelligence, the correlation between health and intelligence, as well as the social effects of intelligence. It is often found that intelligence level can be connected to school performance, job performance, crime, religiosity and income.
Some Well Known IQ Tests
Some of the more well known IQ tests include Wechscler Intelligence Scale for adults and children, the Woodcock-Johnson Tests of Cognitive abilities, and the Stanford-Binet. They are all regarded as highly accurate, with many psychologists indicating that IQ tests provide important statistical information for clinical purposes. These widely known tests are often not offered for free; however, there are many free IQ tests available online that are based on the ideas of these tests. While a free IQ test may not be quite as accurate as the real thing, they can actually give you insight into many things, especially if the score is broken down into smaller categories instead of an overall score. For example, if you score low on the visual category of the test, you can make an effort to try to work on visual mental skills. If you do not have the ability to improve those skills, then at least you will know that being an architect or interior designer probably is not going to be your best career path choice.
Taking an IQ test regularly throughout your life can also give you insight into the possibility of declining health. For example, a decrease in IQ as your get older can be an indicator of diseases such as Alzheimer’s or Dementia. In addition, comparing your IQ score as you age can also give you insight into your mental development and can aid you in improving mental skills if you wish to do so. But don’t forget that it’s not necessary to spend a lot of money to take these tests; there are many free IQ tests online that will suffice. However, if you wish to gain entrance into a high IQ society, like Mensa, you will need to take one of the Mensa approved IQ tests, which won’t be offered for free online.
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