— IQ score explained
IQ of 88 — meaning, percentile & profile
An IQ of 88 is in the low-average range, below 79% of adults. This does not predict life outcomes — context, motivation, and skills matter enormously.
What does IQ 88 mean in practice?
→Pause. Find out YOUR IQ before you keep reading.An IQ of 88 means your raw performance on a standardised IQ test places you at the 21th percentile of the general adult population — lower than 79% of people. Many people at this level succeed across a wide variety of careers and life domains with the right conditions and strategies.
IQ 88 and the normal distribution
→Curious how YOU score? 20-min calibrated test.IQ is defined with a mean of 100 and a standard deviation of 15. An IQ of 88 is 0.8 standard deviations below the mean. The normal distribution tells us that:
- About 68% of people score between 85 and 115
- About 95% of people score between 70 and 130
- About 99.7% of people score between 55 and 145
- An IQ of 88 is higher than 21% of the adult population
IQ 88 and career outcomes
→The numbers above? Find out where YOU land.Career success depends on far more than IQ — motivation, perseverance, social skills, practical reasoning, and domain knowledge are all equally or more important than the IQ number for most real-world outcomes. Many people with IQs in this range lead highly successful and fulfilling careers.
Comparing IQ 88 to common benchmarks
→Knowing about IQ ≠ knowing yours. Take the test.| Score | Percentile | Classification |
|---|---|---|
| IQ 75 | 5th | Borderline range |
| IQ 80 | 9th | Low average |
| IQ 85 | 16th | Low average |
| IQ 90 | 25th | Average range |
| IQ 92 | 30th | Average range |
How to accurately measure your IQ
→Stop reading. Start testing →A reliable IQ test uses Item Response Theory (IRT) scoring, which adapts the scoring based on item difficulty parameters rather than simply counting correct answers. Core Brain uses IRT 3PL (three-parameter logistic) scoring — the same statistical framework used by the WAIS and Stanford-Binet — and returns your score with a 95% confidence interval so you know the measurement uncertainty.
Related IQ scores
→Pause. Find out YOUR IQ before you keep reading.- IQ 75 — Borderline range, 5th percentile
- IQ 80 — Low average, 9th percentile
- IQ 85 — Low average, 16th percentile
- IQ 90 — Average range, 25th percentile
- IQ 92 — Average range, 30th percentile