Percentile 1 = IQ 65. Smarter than 1% of people. Classification: Extremely Low — Well below average, often benefits from extra support. Rarer than 1 in 100.
| IQ | Classification | Percentile |
|---|---|---|
| 100 | Average | 50.0% |
| 120 | Superior | 90.9% |
| 130 | Very Superior / Gifted | 97.7% |