Intelligence Test IQ Scoring and Norms 2 — Questions and Answers
Question 1: What is the 'Flynn Effect'?
- The tendency for IQ scores to decline with age
- The observed rise in average IQ scores across generations over the 20th century (Correct answer)
- A bias in IQ tests favoring males
- The effect of nutrition on test scores
Correct answer: The observed rise in average IQ scores across generations over the 20th century
The Flynn Effect refers to the documented increase in average IQ scores across populations over the 20th century, named after researcher James Flynn.
Question 2: Why are IQ tests periodically 're-normed'?
- To make them easier for younger generations
- To correct for the Flynn Effect and maintain the average score at 100 (Correct answer)
- To add new question types
- To remove culturally biased items
Correct answer: To correct for the Flynn Effect and maintain the average score at 100
Re-norming adjusts the scoring scale so that the average score remains 100, accounting for rising raw performance over time.
Question 3: What does it mean for an IQ score to be at the '84th percentile'?
- The score is 84 points
- The person scored higher than 84% of the norm group (Correct answer)
- The person got 84% of questions correct
- The test had 84 questions
Correct answer: The person scored higher than 84% of the norm group
A percentile rank of 84 means the individual scored higher than 84% of the reference population.
Question 4: An IQ score of 130 falls at approximately which percentile?
- 84th
- 95th
- 98th (Correct answer)
- 99.9th
Correct answer: 98th
A score of 130 (two standard deviations above the mean) corresponds to approximately the 98th percentile.
Question 5: Which of the following BEST describes a 'deviation IQ'?
- An IQ calculated by dividing mental age by chronological age
- A score showing how far a person deviates from the average of their age group (Correct answer)
- A measure of how deviant a person's behavior is
- An outdated scoring method no longer in use
Correct answer: A score showing how far a person deviates from the average of their age group
A deviation IQ compares a person's performance to others in their age group and expresses it as a standard score with a mean of 100.
Question 6: Which IQ score range is associated with the diagnosis of intellectual disability in clinical settings?
- Below 100
- Below 85
- Below 70 (Correct answer)
- Below 80
Correct answer: Below 70
An IQ score below 70 (two standard deviations below the mean), combined with deficits in adaptive functioning, is used in diagnosing intellectual disability.
Intelligence Test IQ Scoring and Norms 2
What is the 'Flynn Effect'?