Levels of measurement

Question 1

What are the levels of measurement?

Answer 1

• Nominal
• Ordinal
• Interval

Question 2

What is nominal data?

Answer 2

• Data which is in categories
• Each participant does not have a score of their own, they are counted in categories
• All behaviour category checklists are nominal data
• All coding in a content analysis is nominal data

Question 3

What is ordinal data?

Answer 3

• This is continuous numerical data (scale)
• All participants have an individual score
• The data is ranked numerically
• The numbers have a relationship to each other

Question 4

What is interval data?

Answer 4

• Continuous numerical data
• This is where the difference between the numbers is the same
• There is a true mathematical meaning to the numbers