What Does an IQ of 99 Mean?

What Does an IQ of 99 Mean? An IQ of 99 means normal or average intelligence. The Wechsler Intelligence Scale states that an IQ of 99 is average intelligence. Moreover, If you have about five minutes to read this page, you will learn four things about an IQ score of 99.




Average Intelligence is the Same as Normal Intelligence

If you or your child previously scored 99 on an IQ test, you or your child has normal intelligence which is also known as average intelligence. If an IQ score of 99 seems appropriate then there is no cause for alarm. However, if an IQ score of 99 seems a bit low, there are several reasons why you or your child has an IQ score of 99. For example, it is possible that you or your child just flat-out did poorly on the test. And the main reasons why people score poorly on tests is due to test anxiety or not being prepared or just simply being distracted.

IQ and Standard Deviation

In statistics and probability theory, the standard deviation shows how much variation or dispersion from the borderline (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 100 percent of the population scores an IQ between 70 and 130, which is within two standard deviations of the median.

IQ Table and Percentiles for an IQ Score of 99

The table below demonstrates a cross reference of your IQ score. For example, an IQ score of 99 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 99. And finally, the IQ table gives you the rarity and percentile of your IQ score of 99 and it also demonstrates how your IQ score ranks against the general population.

IQ Score of 99
IQ Calculation
Stanford-Binet
99
Cattell
99
Wechsler
99
Standard Deviation
-0.0625
GRE
849
SAT
930
Percentile
47.508
Rarity
2
An IQ Score of 99 is Higher Than
47.3% of the General Population



IQ and Occupation

People who work in the following occupations typically have an average IQ of 99. However, there are people who have an IQ higher than 99 that are employed in the types of careers listed below but do so only until a better career opportunity presents itself.