What is the IQ percentile chart?
IQ percentiles and rarity
| IQ test score | Percentile | Rarity |
|---|---|---|
| 129 | 97.5th | 1 in 40 |
| 135 | 99th | 1 in 100 |
| 139 | 99.5th | 1 in 215 |
| 147 | 99.9th | 1 in 1157 |
What is the 50th percentile IQ?
An IQ of 100 is at the 50th percentile. The average child will earn a standard score of 100. If a child scores 1 standard deviation above the mean, the standard score is 100 plus 15; i.e. 100 + 15 = 115. If the child scores 1 standard deviation below the mean, this is 100 minus 15, i.e. 100 – 15 = 85.
Is 129 a high IQ?
85 to 114: Average intelligence. 115 to 129: Above average or bright. 130 to 144: Moderately gifted. 145 to 159: Highly gifted.
Are IQ test scores percentiles or percentiles?
IQ test scores are often expressed in percentiles, which is not the same as percentage scores, and a common reason for the misunderstanding of IQ test scores. A percentage refers to the number of items that a person answers correctly compared to the total number of items presented.
What percentage of the population has an IQ between 115 and 130?
The IQ scale below shows what percentage of the population falls within different ranges of IQ scores, for example 13.6\% of people have an IQ score between 115 and 130, by definition. Above you can see an IQ rarity chart, while below are some common IQ test score cut-offs and the corresponding percentiles and rarities.
What are the cut-offs for IQ tests?
Below are some common IQ test score cut-offs and the corresponding percentiles and rarities. Say your IQ score is 120. You can check the corresponding table row and see that this is in the 90th percentile and is correspondingly in the top 10\% of the reference population.
What is the most commonly used IQ test?
Today, the most commonly used individual IQ test series is the Wechsler Adult Intelligence Scale (WAIS) for adults and the Wechsler Intelligence Scale for Children (WISC) for school-age test-takers. IQ test scores explained: Average, superior and low