IQ 115
Is 115 a good IQ? What it means
115 sits in the middle of the High Average band. Here is where that puts you on the curve, how common it is, and what the score does and does not predict.
Short answer
An IQ of 115 is above average. It is higher than about 84.1% of people, which puts it at the 84.1 percentile. About 1 in 6 people score 115 or higher, and the WAIS-IV labels it High Average (110 to 119). It is 1 standard deviation above the mean of 100.
Specimen · IQ 115
115IQ
- Classification
- High Average
- Percentile
- 84.1
- Rarity
- 1 in 6
- z-score
- +1.00
Curious where you would land? IQ Octopus estimates your IQ from 25 visual puzzles in about 12 minutes.
| Percentile | 84.1 |
| Share scoring 115 or higher | 15.9% (about 1 in 6) |
| Out of 1,000 people | about 159 at or above |
| Standard deviations from the mean (z) | +1.00 |
| WAIS-IV classification | High Average (110 to 119) |
| Same percentile, SD 16 scale | 116 |
| Same percentile, SD 24 scale | 124 |
What an IQ of 115 means on the scale
Modern IQ tests report a deviation IQ: scores are standardized so the mean is 100 and the standard deviation is 15 within each age group (Wikipedia: Intelligence quotient). On that scale 115 is 1 standard deviation above the mean. It sits exactly one standard deviation from the mean, at the edge of the 85 to 115 range where about 68% of people score. (the 68-95-99.7 rule)
In a room of 30 people your age, about 5 would be expected to score 115 or higher. Put another way, about 84 out of every 100 people score below 115.
The High Average band: 110 to 119
High Average covers 110 to 119 (Wikipedia: IQ classification). It is the first band above Average and holds about 16.6% of people. The name says what it is: above the middle, but still within reach of the typical range.
The band straddles the edge of that typical range. About 68% of people score between 85 and 115, one standard deviation either side of the mean (the 68-95-99.7 rule), so 110 to 115 sit inside it and 116 to 119 sit just outside. 115 is on the inside, near the top of where most people land.
Where 115 sits inside the band
115 is 5 points above the floor of the High Average band (110) and 4 points below its ceiling (119). Of the people who score in this band, about 58% score below 115.
Clinical IQ scores carry measurement error of around plus or minus 5 points at 95% (Wechsler, 2008). A measured 115 is consistent with a true score anywhere from 110 to 120, which is the 74.8 to 90.9 percentile. That range spans two labels, High Average and Superior, so the band name is the least certain part of the result. A short online test has a wider range than a clinical one, so read any single number as the middle of a span.
What an IQ of 115 does and does not predict
A score here suggests reasoning a step above the typical person your age on puzzles like these. It is a description of one test session, and effort, knowledge and experience matter at least as much in daily life.
Across large groups, the links are real. General intelligence at age 11 correlated 0.81 with exam results at 16 in about 70,000 English children (Deary, Strand, Smith & Fernandes, 2007), a review of 85 years of workplace research put the link with job performance at 0.51 (Schmidt & Hunter, 1998), and a 2007 meta-analysis found correlations of about 0.56 with education and 0.23 with income (Strenze, 2007). Those describe tendencies across many people. None of them let anyone predict an individual life from one number. The guide to what IQ predicts explains what a correlation of that size means.
Same score, different tests
Older Stanford-Binet forms used a standard deviation of 16, and the Cattell Culture Fair III scale uses 24 (Wikipedia: IQ classification). The same percentile as 115 on a standard-deviation-15 test reads as about 116 on the first and 124 on the second, so check which scale a number is on before comparing scores from different tests.
Nearby scores
| IQ | Percentile | Rarity | Classification |
|---|---|---|---|
| IQ 100 | 50 | 1 in 2 | Average |
| IQ 105 | 63.1 | 1 in 3 | Average |
| IQ 110 | 74.8 | 1 in 4 | High Average |
| IQ 112 | 78.8 | 1 in 5 | High Average |
| IQ 113 | 80.7 | 1 in 5 | High Average |
| IQ 114 | 82.5 | 1 in 6 | High Average |
| IQ 116 | 85.7 | 1 in 7 | High Average |
| IQ 117 | 87.1 | 1 in 8 | High Average |
| IQ 118 | 88.5 | 1 in 9 | High Average |
| IQ 120 | 90.9 | 1 in 11 | Superior |
| IQ 125 | 95.2 | 1 in 21 | Superior |
| IQ 130 | 97.7 | 1 in 44 | Very Superior |
IQ 114 · IQ 116 · every score on the IQ chart · IQ percentile calculator · the seven classification bands
Sources
- Intelligence quotient. Wikipedia. en.wikipedia.org/wiki/Intelligence_quotient
- IQ classification. Wikipedia. en.wikipedia.org/wiki/IQ_classification
- 68-95-99.7 rule. Wikipedia. en.wikipedia.org/wiki/68%E2%80%9395%E2%80%9399.7_rule
- Wechsler, D. (2008). WAIS-IV Technical and Interpretive Manual. Pearson.
- Deary, I. J., Strand, S., Smith, P., & Fernandes, C. (2007). Intelligence, 35(1), 13-21. doi.org/10.1016/j.intell.2006.02.001
- Schmidt, F. L., & Hunter, J. E. (1998). Psychological Bulletin, 124(2), 262-274. doi.org/10.1037/0033-2909.124.2.262
- Strenze, T. (2007). Intelligence, 35(5), 401-426. doi.org/10.1016/j.intell.2006.09.004