Consider the following operational definitions, and select the appropriate number system for that variable.
Height was operationally defined as
Shorter-than-average (more than 2 inches below the average)
Average (plus or minus 2 inches of the average)
Taller-than-average (more than 2 inches above the average)
What is the scale of measurement?
Ordinal, Nominal, Interval, Ratio?
Weight was operationally defined based on BMI as normal weight (18.5-24.5), underweight (<18.5), overweight (25-29.9), or obese (>30).
What is the scale of measurement?
Ordinal, Nominal, Interval, Ratio?