Levels of measurement Question 1

1 / 8

# Levels of measurement Question 1 - PowerPoint PPT Presentation

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.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about 'Levels of measurement Question 1' - julian-kline

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
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
• 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
• 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
• 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

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

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

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

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