attrition rate
rate of attrition

A high attrition rate can be a major threat to validity in a study.

The city's overall attrition rate for teachers in or after their first year is 25 percent.

The attrition rate is the same as in high school.

The attrition rate in retail fast food is between 200 and 400 percent a year.

The attrition rate among teachers has been high because the hours are trying and there is no extra pay for working them.

How does the company keep its attrition rate under 10 percent?

The attrition rate of students entering the university was very small.

At Purchase, however, officials are taking the high attrition rate to heart.

The company size and industry also play a key role in attrition rate.

Eastern's attrition rate has since improved but remains above the industry average of about 5 percent.