we can assign to values.</li>
<li>An <strong>interval scale</strong> allows items to be assigned more meaningful numbers. On an interval scale, the differences between numbers can themselves be meaningfully ordered. Temperature is a common example. The difference between 16 and 14 degrees Celsius is smaller than the difference between 19 and 16 degrees Celsius. But we can not say that 30 degrees Celsius is twice as warm as 15 degrees Celsius. This is because an interval scale doesn’t have a fixed 0 point.