MathGloss/I/Interval scale

Examples
The following are examples of interval scales:
 * Fahrenheit scale of temperature -- the difference between 30 degrees and 40 degrees represents the same temperature difference as the difference between 80 degrees and 90 degrees, because each 10 degree interval has the same physical meaning (in terms of the kinetic energy).
 * Age
 * Height

Acknowledgements
Portions of this entry were adapted from
 * Interval Scales at Online Statistics Education: An Interactive Multimedia Course of Study. Project Leader: David M. Lane, Rice University. Retrieved 21 February 2012.