Why is the mean IQ score 100 for both boys and girls?
A)The tests balance the items boys do best with other items that girls do best.
B)On average, brain size is equal for boys and girls.
C)The test gives boys two "bonus" points to make their average equal to that of girls.
D)The test gives girls two "bonus" points to make their average equal to that of boys.

Question

Quizplus · Accepted Answer

IQ tests are designed to have a mean score of 100 for the general population, and this is achieved by balancing the types of questions to ensure no gender bias. This means that the items that boys typically perform better on are balanced with items that girls typically perform better on, ensuring that, on average, both genders score similarly.

Why Is the Mean IQ Score 100 for Both Boys