Title: Self test: Levels of measurement
Course: UGQuants (SSPS) > Section: Introduction to Quantitative Analysis

Self test 1

This is the self test about the levels of measurement.

Question 1

What level of measurement has age when it is recorded in years?

- ratio
Feedback: Correct!
- nominal
Feedback: Incorrect
- ordinal
Feedback: Incorrect

Question 2

What level of measurement has the variable national identity? (e.g. with response categories 'British', 'Scottish', 'European' etc.)

- nominal
Feedback: Correct
- ordinal
Feedback: Incorrect
- ratio
Feedback: Incorrect

Question 3

What level of measurement has the variable measuring the degree of general satisfaction with the National Health Service on a scale from ‘Very satisfied’ to ‘Very dissatisfied’?

- ordinal
Feedback: Correct!
- ratio
Feedback: Incorrect
- nominal
Feedback: Incorrect

Question 4

What level of measurement has ethnic group (Black African, Asian Indian, Chinese etc.)?

- nominal
Feedback: Correct!
- ordinal
Feedback: Incorrect
- ratio
Feedback: Incorrect

Question 5

And at which level do you capture whether or not someone voted in the last election for the European Parliament?

- nominal
Feedback: Correct! However, in statistical computation, binary variables like this are often used as 'dummies' and treated like ratio variables.
- ordinal
Feedback: Strictly speaking, this is incorrect. However, binary variables can be viewed in different ways and are sometimes even treated as ratio variables, so called 'dummies'.
- ratio
Feedback: Strictly speaking, this is incorrect. However, binary variables can be viewed in different ways and are often in statistical models indeed treated as ratio variables, so called 'dummies'.

Question 6

Which of the following variables in the ESS Practice data set are measured at ordinal level?

- freehms: Gays and lesbians free to live life as they wish
Feedback: Correct!
- rlgdngb: Religion or denomination belonging to at present, United Kingdom
Feedback: Incorrect
- marsts: marital status
Feedback: Incorrect