testing and measurements

Question

At what level would the following variables be measured? a. Distances between towns b. Intelligence measured by an IQ test c. The rank ordering of members of a class based on height d. The numbering of those with blue eyes 1, brown eyes 2, green eyes 3, and other colors 4

Answer 1

Some hints to get you started:

Levels of measurement. (Note: Each subsequent level can handle the operations allowable for all previous levels)

nominal. Only categorization is possible.

ordinal. Rank ordering is possible.

interval. meaningful differences can be calculated. Arbitrary zero point. Common examples: time, dates, celsius and farenheit temperatures,

ratio. TRUE zero point. meaningful ratios can be created. Common examples: Kelvin temperate (has absolute zero), distance

You might find this online article helpful, https://www.statology.org/levels-of-measurement-nominal-ordinal-interval-and-ratio/