1. Levels of measurement Question 1
Age in years?
Ratio and discrete
Is the following statement valid?
A person who is 44 years old is twice as old as someone who is 22 years old
Valid – ratio level measures allow us to identify the magnitude of differences

2. Levels of measurement Question 2
Temperature in Celsius?
Interval and continuous
Is the following statement valid?
Liquid that is 3°C is three times as hot as the same liquid at 1°C
Not valid – interval level measures tell us how much more (2°C in this case) but not magnitude

3. Levels of measurement Question 3
Religion?
Nominal
Why?
Nominal level measures have no ordering
What is wrong with these categories for measuring religion?
Catholic
Anglican
Hindu
Buddhist

4. Levels of measurement Question 4
Exam grades i.e. A, B, C etc
Ordinal
Is the following statement valid?
A student who got a ‘B’ got a higher grade than a student who got a ‘C’
Valid – but with ordinal level measures we don’t know by how much higher

5. Levels of measurement Question 5
You measure the waist (in cm) of a number of patients. This would be an example of measurement at the:
nominal level.
ordinal level.
interval level.
ratio level.

6. Levels of measurement Question 6
What level of measurement would be involved in recording a person's national insurance number?
nominal level
ordinal level
interval level
ratio level

7. Levels of measurement Question 7
A variable that can only take certain values (like whole numbers) is referred to as a:
continuous variable.
discrete variable.
constant.
statistical variable.

8. Levels of measurement Question 8
Identify the usual level of measurement for each of the following
A. year in school B. IQ scores C. life expectancy D. fatigue E. cynicism F. hair colour G. type of neighbourhood