Question

Why do psychologists often use the normal distribution to represent variables like intelligence scores?

a) Because it is the only available distribution
b) Because it has a skewed shape
c) Because it is an accurate representation of most psychological variables
d) Because it is easy to calculate

Answer 1

Psychologists use the normal distribution to represent variables like intelligence scores because it is an accurate representation of most psychological variables. The normal distribution is bell-shaped and symmetric, making it a good model for traits that naturally follow the bell curve.

Step-by-step explanation:

Psychologists often use the normal distribution to represent variables like intelligence scores because it is an accurate representation of most psychological variables. The normal distribution is bell-shaped and symmetric, making it a good model for human traits that naturally follow the bell curve. By using the normal distribution, psychologists can analyze and interpret intelligence scores in a standardized way, comparing individuals' scores to the average and understanding the likelihood of different scores occurring.