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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. Levels of measurement Question 2.

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levels of measurement question 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
levels of measurement question 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
levels of measurement question 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
levels of measurement question 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
levels of measurement question 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.
levels of measurement question 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
levels of measurement question 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.
levels of measurement question 8
Levels of measurement Question 8

Identify the usual level of measurement for each of the following

A. year in schoolB. IQ scoresC. life expectancyD. fatigueE. cynicismF. hair colourG. type of neighbourhood