Supposedly, it is a score that tells one how “bright” a person is compared to other people.
But did you know ...... (click here to enjoy an online resource) &/Or(click here to take a free IQ test)
The average IQ is by definition 100; scores above 100 indicate a higher than average IQ and scores below 100 indicate a lower that average IQ. Theoretically, scores can range any amount below or above 100, but in practice they do not meaningfully go much below 50 or above 150.
Half of the population have IQ’s of between 90 and 110, while 25% have higher IQ’s and 25% have lower IQ’s:
| Descriptive Classifications of Intelligence Quotients | ||
| IQ | Description | % of Population |
| 130+ | Very superior | 2.2% |
| 120-129 | Superior | 6.7% |
| 110-119 | High average | 16.1% |
| 90-109 | Average | 50% |
| 80-89 | Low average | 16.1% |
| 70-79 | Borderline | 6.7% |
| Below 70 | Extremely low | 2.2% |
| 140 | Top Civil Servants; Professors and Research Scientists. |
| 130 | Physicians and Surgeons; Lawyers; Engineers (Civil and Mechanical) |
| 120 | School Teachers; Pharmacists; Accountants; Nurses; Stenographers; Managers. |
| 110 | Foremen; Clerks; Telephone Operators; Salesmen; Policemen; Electricians. |
| 100+ | Machine Operators; Shopkeepers; Butchers; Welders; Sheet Metal Workers. |
| 100- | Warehousemen; Carpenters; Cooks and Bakers; Small Farmers; Truck and Van Drivers. |
| 90 | Laborers; Gardeners; Upholsterers; Farmhands; Miners; Factory Packers and Sorters. |
