Measurement Scales (Nominal, Ordinal, Interval, Ratio)

Question 1

Is the process of assigning value to a variable

Answer 1

Measurement

Question 2

There are four levels of scales of measurement:

Answer 2

• Nominal
• Ordinal
• Ratio
• Interval

Question 3

Observations can be named without particular order or ranking imposed on the data. Words, letters, and even numbers are used to classify the data.

Ex:
- Gender
- Types of Electric Consumption

Answer 3

Nominal Level

Question 4

Describes ranking or order. The difference or ratio between two rankings may not always be the same

Ex:
- Competition Placement
- Level of Satisfaction

Answer 4

Ordinal Level

Question 5

Indicates an actual amount (numerical). The order and the difference between the variables can be known. Its limitation is it has no “true zero”

Ex:
- Temperature

Answer 5

Interval Level

Question 6

It has the same properties as the interval level. The order and difference can be described. Additionally, it has a true zero and the ratio between two points has a meaning

Example:
- Mass

Answer 6

Ratio Level