Intelligence Test IQ Scoring and Norms 2

Question 1

What is the 'Flynn Effect'?

Accepted Answer

The observed rise in average IQ scores across generations over the 20th century

Answer

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'?

Accepted Answer

To correct for the Flynn Effect and maintain the average score at 100

Answer

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'?

Accepted Answer

The person scored higher than 84% of the norm group

Answer

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?

Accepted Answer

98th

Answer

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'?

Accepted Answer

A score showing how far a person deviates from the average of their age group

Answer

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.

Intelligence Test Practice Test