Norm group

Imagine you are running a race with other kids your age. Your coach wants to find out how fast you are compared to all the other kids. He measures how long it takes for each kid to finish the race and then looks at the results to find out who was the fastest. This group of kids who ran the race together is called a "norm group."

A norm group is a group of people who are similar to each other in some way, like their age or their job. It's used to compare how one person compares to others in the same group. For example, if you take a test in school, your teacher might compare your score to the scores of other students in your class to see if you did better, worse, or the same. The norm group in this case is your classmates.

It's important to have a norm group because it helps put things into perspective. For example, if you are playing basketball, it doesn't make sense to compare your skills to someone who plays in the NBA because they are much more experienced and skilled than you. But if you compare yourself to your classmates who also play basketball, you can see how you measure up.

In summary, a norm group is a group of people who are similar in some way and are used to compare how one person or thing measures up to others in the same group.