What does an 88 IQ say about you?
An IQ of 88 is in the low average range, a little below the middle of the population. Roughly 1 person in 6 scores between 80 and 89, so it is a common result, and on another day or another test it could easily come out in the 90s.
Where 88 sits on the bell curve
An IQ of 88 is 12 points below the average of 100, or 0.8 standard deviations. It is higher than about 21% of people of the same age, shown by the shaded area below. This part of the curve is still crowded: the scores just below the average are some of the most common results there are.
On other IQ scales, the same result would be about 87 on a test with a standard deviation of 16, such as older editions of the Stanford-Binet, and 81 on the Cattell scale, which uses 24. Why scales differ.
IQ 88 meaning: a closer look
With a score of 88, you are ahead of about 21 in every 100 people and just two points short of the average range. If you picture a class of 30, 88 would typically rank around 24th. That sounds lower than it feels in real life, because most of the class is bunched within a few points of each other in the middle of the bell curve. A practical tip: if your result came from a test with lots of timed puzzles, the format itself may have cost you points, especially if this type of question was new to you.
Would a reward lift an 88? The motivation study that was retracted
In 2011 a widely cited PNAS paper by Duckworth and colleagues pooled experiments with 2,008 participants and reported that material incentives raised IQ scores by an average of 0.64 standard deviations, with larger effects for people with lower starting scores. In 2025 the authors retracted the paper. One 1978 study in their analysis had itself been retracted. Without it, the effect fell to 0.47, and after adjusting for publication bias it fell to 0.16, with a confidence interval that included zero.
In IQ terms, the corrected estimate is about 2 points, and the true effect may be nothing at all. So there is no good evidence that an 88 would become a much higher score just because someone was offered a prize. It is still sensible to take any test rested and without distractions, but the idea that low scores mostly reflect low effort is not supported by the corrected numbers. The episode is also a useful reminder that a striking claim about IQ can shrink a long way once the data are checked again.
Sources: Duckworth, A. L. et al. (2011), "Role of test motivation in intelligence testing" (retracted), PNAS, 108(19), 7716 to 7720; "Retraction for Duckworth et al., Role of test motivation in intelligence testing" (2025), PNAS, 122(18), e2508040122.
What 88 looks like among real people
If you lined up 100 people of your age, about 21 would score lower than 88 and about 79 would score the same or higher. The orange dot marks your place in the line.
In any ordinary workplace or classroom, plenty of people around you will have scores close to this one.
How precise is a score of 88?
No IQ test measures to the exact point. On a professional test, a result of 88 usually comes with a likely range of about five points either way: 83 to 93. That range runs from the 13th to the 32nd percentile, and it crosses from low average into average.
Low average scores are especially sensitive to the conditions of the test. Speed matters on most IQ tests, so tiredness, nerves, reading in a second language or an unfamiliar question format can pull a result down by several points.
On the Assessivo test, 88 is the score for 13 correct answers out of 36. How our score is worked out.
So if you scored 88 once, a retest on another day could reasonably land anywhere from 83 to 93. Online tests are less precise still, so treat any online result as a rough estimate.
IQ 88 and mental age in children
Early IQ tests for children worked with a "mental age", the age whose typical performance a child matched. The IQ was that mental age divided by the child's real age, times 100. Turned around, the formula shows what a score of 88 would have meant for children of different ages: working a little behind their years.
| Real age | Mental age at IQ 88 |
|---|---|
| 5 | 4 years 5 months |
| 7 | 6 years 2 months |
| 9 | 7 years 11 months |
| 11 | 9 years 8 months |
| 13 | 11 years 5 months |
The same 88 stands for a gap of about 7 months at age 5 but 1 year 7 months at 13, because the formula scales with age. That is one reason it broke down for teenagers and adults, whose test performance stops rising every year. Today's tests compare you with people of the same age instead, so a mental age is only a way to picture a child's score, never a description of an adult.
What an IQ of 88 means for you
It sits near the top of the low average band, which runs from 85 to 89.
- New, abstract puzzles may take a little longer than they do for most people, particularly against the clock.
- Skills built through practice, such as a trade, a sport or a subject you know well, depend far more on experience than on this number.
- A low average result on its own says nothing about a learning difficulty or any other condition. That needs a full assessment by a qualified psychologist.
How far 88 is from other levels
How 88 compares with nearby scores
Want a score that isn't listed, or the share of people between two scores? Try the IQ calculator.
| IQ | Percentile | Classification | Score this high or higher |
|---|---|---|---|
| 78 | 7th | Borderline | 93% |
| 83 | 13th | Low average | 87% |
| 88 | 21st | Low average | 79% |
| 93 | 32nd | Average | 68% |
| 98 | 45th | Average | 55% |
Questions about an IQ of 88
What percentile is an IQ of 88?
An IQ of 88 is at about the 21st percentile, which means it is higher than about 21% of people of the same age.
Is 88 a high IQ?
No. 88 is in the low average range. High IQ usually refers to scores of 120 or 130 and above.
Can an IQ of 88 get into Mensa?
Not on its own. Mensa accepts the top 2% on an approved, supervised test, which is usually 130 or above. 88 is 42 points below that.
How common is an IQ of 88 or higher?
About 79% of people score 88 or higher. In a stadium of 50,000 people, about 39,400 would score at this level or above.
Would I score higher than 88 if I tried harder?
Possibly a little, but the evidence is weaker than once thought. A 2011 meta-analysis claimed rewards raised IQ scores by about 0.64 standard deviations, but its authors retracted it in 2025. After removing a retracted study and correcting for publication bias, the effect shrank to about 0.16, roughly 2 points, and was no longer statistically significant. Taking the test rested and focused is sensible, but effort alone is unlikely to transform the score.
What mental age is an IQ of 88?
Under the old ratio formula, a 9-year-old with an IQ of 88 would perform like a typical child of about 7 years 11 months, roughly 13 months behind. The idea only works for children: an adult who scores 88 simply did less well than most adults of the same age on the test.
Is an IQ of 88 below average?
Slightly. The average range runs from 90 to 109, so 88 sits just under it, in the band called low average. It is still within the range where most people score.
Can I improve an IQ score of 88?
Your measured score can rise with practice on the question types, a good night's sleep and a quiet room, because retaking similar tests usually raises scores. Your underlying reasoning ability changes more slowly, but schooling and learning do help it over time.
Does an IQ of 88 affect what jobs I can do?
Very few jobs have an IQ requirement. Some employers use timed reasoning tests in hiring, and practice with the format helps on those. For most careers, training, experience and reliability matter far more.
For what counts as normal, see our guide to average IQ, and for what IQ does and doesn't capture, what IQ is. If you are wondering whether a score can go up, can you increase your IQ? sets out the evidence. Every score range is in the IQ range chart.
Behind a single score of 88 sit several separate abilities. Read about verbal reasoning, processing speed, fluid vs crystallized intelligence, abstract reasoning and spatial reasoning, or try the free pattern recognition test.
What would you score?
Take the free Assessivo IQ test: 36 questions, 25 minutes, and your estimated IQ score and percentile as soon as you finish.
Take the free IQ test