Levels Of Measurement

Question 1

What deos levels of measurement refer to?

Answer 1

It refers to 3 types of data:
Nominal data
Ordinal data
Interval data

Question 2

Define nominal data?

Answer 2

Data that is represented in the form of categories which is also discrete data

Question 3

Is nominal data continuous or discrete?

Answer 3

It is discrete

Question 4

Define ordinal data?

Answer 4

Data that is scored, which can ranked (AO2 - there is not true consistency between the gaps.)

Eg income or GCSE

Question 5

What is another way to say interval data?

Answer 5

Ratio data

Question 6

Define interval data?

Answer 6

Ordered data which is based on specific equal intervals of size

Question 7

Give an example of interval data?

Answer 7

Units of measure for length and time

Question 8

Why may you not use ordinal data?

Answer 8

Ordinal data uses scores or rank: when completing questionnaires, there is a chance of social desirability bias. This would suggest that the data could be unreliable.

Due to the nature of scale, there is no equal value between them. For example, a likert scale using a scale of 1-5, does not indicate that 5 is 3 times for likely than 2