Final answer:
The intelligence quotient (IQ) is a score earned on a test designed to measure intelligence. It compares an individual's score to the average score of the population, with an average IQ score of 100. Scores above or below the average indicate above-average or below-average intelligence.
Step-by-step explanation:
The intelligence quotient (IQ) is a score earned on a test designed to measure intelligence. It is a comparison of an individual's score to the average score of the population. On most IQ tests, the average IQ score is 100, and one standard deviation is 15 points.
For example, a score of 115 would be considered one standard deviation above the mean, indicating above-average intelligence. A score of 70 would be considered one standard deviation below the mean, indicating below-average intelligence. Any score between 85 and 115 is considered average. An IQ score of 130 or above is considered superior intelligence.