When psychologists say that intelligence test scores are _______ distributed, they mean that the distribution of scores ________.
A) normally; follows a bell-shaped curve
B) positively; falls within one standard deviation of the mean
C) negatively; falls within two standard deviations of the mean
D) typically; is much more than three standard deviations from the mean

Question

Quizplus · Accepted Answer

Psychologists commonly refer to intelligence test scores as normally distributed because the distribution of scores typically follows a bell-shaped curve, with most scores falling near the average and very few scores falling at the extremes. This is a statistical phenomenon known as the normal distribution, which is characterized by a symmetrical shape and a specific pattern of percentages of scores falling within certain standard deviation units from the mean.

When Psychologists Say That Intelligence Test Scores Are _______ Distributed