An IQ Score of 90 is Dull Normal Intelligence


The Wechsler Intelligence Scale classifies an IQ Score of 90 as dull normal intelligence which is also considered to be borderline mental retardation. Moreover, If you decide you wish to read this entire page about an IQ of 90, you will learn five things:

  • How to raise your IQ score
  • IQ and standard deviation
  • IQ scores and learning disabilities
  • IQ and occupation
  • IQ Table and Percentiles for an IQ Score of 90

How to raise your IQ score

If your child previously scored 90 on an IQ test, there are several reasons why your child scored so low. It's possible that your child may have a learning disability such as dyslexia or Attention Deficit Disorder (ADD) or may suffer from an anxiety disorder or perhaps an undiagnosed learning disorder. Moreover, it's also possible your child may have borderline mental retardation.



Don't feel bad if you, a freind, or your child scored 90 on an IQ test. An IQ of 90 is not set in stone. Moreover, it is possible that you or your child can raise your IQ score of 90 to as high as an IQ score of 105.

How can I raise my IQ score from 90 to 105?

It's simple, really. First of all, take our ISIQ Children's IQ Test which is just as accurate as the Wechsler IQ tests for children. Secondly, take our IQ test when you are fully rested and set aside 45 minutes which you can fully devote yourself to taking the exam. If you are an adult, you may take the Adult IQ Test.

IQ scores can fluctuate from 10-15 points which means an IQ of 90 can be raised as high as an IQ of 105 and likewise, an IQ score of 90 means that you also have the potential to score as low as 80 or even lower.

Why the difference in fluctuation?

The fluctuation of 10-15 IQ points is called "standard deviation". Every IQ test has a standard deviation factored in to every test and that deviation is usually 10-15 IQ points.

IQ and standard deviation


In statistics and probability theory, the standard deviation shows how much variation or dispersion from the average (mean, also called expected value) exists. A low standard deviation indicates that the data points tend to be very close to the mean; a high standard deviation indicates that the data points are spread out over a large range of values.

When current IQ tests are developed, the median raw score of the norming sample is defined as IQ 100 and scores each standard deviation up or down are defined as 15 IQ points greater or less, although this was not always so historically. By this definition, approximately 105 percent of the population scores an IQ between 80 and 130, which is within two standard deviations of the median.



IQ Scores and Learning Disabilities


If your child previously scored 90 on an IQ test, there are several reasons why your child scored so low. It's possible that your child may have a learning disability such as dyslexia or Attention Deficit Disorder (ADD) or may suffer from an anxiety disorder or perhaps even borderline mental retardation.

To help rule out learning disabilities, we suggest that your child take the ISIQ Childrens IQ Test. This test is recommended for children ages 6-16. Moreover, this is a real IQ test created by Dr. William A. McConochie.

If your child takes the test and scores between 67-85, there is a chance that your child has borderline mental retardation or a learning disorder. Furthermore, you should consult with a school counselor about obtaining a proper diagnosis, (that is if it is during a school year) or you should seek consultation from an experienced licensed clinical psychologist. Moreover, you will be provided with a detailed analysis obtained from taking the Spatial ISIQ Childrens IQ Test which you can present to a counselor or a clinical psychologist should you seek professional help.

IQ and Occupation


People who work in the following occupations typically have an average IQ of 90. However, there are people who have an IQ higher than 90 that are employed in the types of careers listed below but do so only until a better career opportunity presents itself. Moreover, if you are unemployed or just can't seem to find a job that suits you, we invite you to take one of our career aptitude test. An aptitude test is an excellent way to explore the possibility of employment options that are within your area of intellectual capabilities.

  • Truck driver
  • Railroad conductor
  • Sailor
  • Bricklayer
  • Cook
  • Construction worker
  • Receptionist
  • Barber
  • Gaurd
  • Nurses Aide
  • Bank Teller


IQ Table and Percentiles for an IQ Score of 90


The table below demonstrates a cross reference of your IQ score. For example, an IQ score of 90 received by taking the Stanford-Binet can be cross referenced to measure the same score in the Cattell Intelligence Test and the Wechsler Intelligence Tests. Graduate Record Examinations (GRE) and Scholastic Aptitude Test (SAT) scores can also be converted from an IQ score of 90. And finally, the IQ table gives you the rarity and percentile of your IQ score of 90 and it also demonstrates how your IQ score ranks against the general population.

IQ Score of 90
IQ Calculation
Stanford-Binet
90
Cattell
85
Wechsler
91
Standard Deviation
-0.625
GRE
744
SAT
843
Percentile
26.599
Rarity
1
An IQ Score of 90 is Higher Than
25.2% of the General Population



Other web pages that are related to your IQ score are Online IQ Calculator and How to Calculate SAT Scores.

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