Intelligence Test IQ Scoring and Norms 1 — Questions and Answers
Question 1: What does IQ stand for?
- Intellectual Quotient
- Intelligence Quotient (Correct answer)
- Inherent Quality
- Intellectual Quality
Correct answer: Intelligence Quotient
IQ stands for Intelligence Quotient, a score derived from standardized intelligence tests.
Question 2: On most modern IQ tests, what is the average (mean) score for the general population?
- 85
- 115
- 100 (Correct answer)
- 120
Correct answer: 100
Modern IQ tests are normalized so that the average score is 100, with a standard deviation of 15.
Question 3: The original IQ formula was Mental Age divided by Chronological Age, multiplied by 100. Who developed this formula?
- Alfred Binet
- William Stern (Correct answer)
- Francis Galton
- David Wechsler
Correct answer: William Stern
William Stern introduced the mental age ratio formula (MA/CA × 100) as a way to express intelligence as a single number.
Question 4: What IQ score range is typically classified as 'average' intelligence?
- 70–79
- 80–89
- 90–109 (Correct answer)
- 110–119
Correct answer: 90–109
Scores between 90 and 109 are generally classified as the average range on most standardized IQ scales.
Question 5: What percentage of the population scores between 85 and 115 on a standard IQ test?
- 50%
- 68% (Correct answer)
- 95%
- 34%
Correct answer: 68%
Approximately 68% of people fall within one standard deviation (±15 points) of the mean score of 100.
Question 6: Which IQ score threshold is commonly used to identify intellectual giftedness?
- 110
- 120
- 130 (Correct answer)
- 140
Correct answer: 130
A score of 130 or above (two standard deviations above the mean) is widely used as the cutoff for intellectual giftedness.
Intelligence Test IQ Scoring and Norms 1
What does IQ stand for?