### Free Educational Resources

4 Tutorials that teach Interval and Ratio Levels of Measurement

# Interval and Ratio Levels of Measurement

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##### Description:

This lesson will explain interval and ratio levels of measurement.

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Tutorial

Source: Scale, public domain http://openclipart.org/detail/23591/bathroom-scale-by-tom-23591 All other images and graphs created by Author

## Notes on "Interval and Ratio Levels of Measurement"

Overview

(0:00-0:24) Review of Quantitative Data

(0:25-0:41) Definition of Interval Level of Measurement

(0:42-1:00) Definition of Ratio Level of Measurement

(1:01-2:00) Example of Interval Level of Measurement

(2:01-2:43) Example of Ratio Level of Measurement

Terms to Know
Interval Measurement

A type of measurement for quantitative data where the value of zero does not correspond to the absolute minimum value, and therefore values cannot be compared in terms of "double," "triple," "half," or any other multiplier. We can, however, compare the differences between values.

Ratio Measurement

A type of measurement for quantitative data where the value of zero is the absolute minimum. Because of this, numerical values that are twice as high represent twice as much.