Maths - Types of Data

Question 1

What is quantitative data?

Answer 1

Data that involves numbers and can be measured objectively - immediately quantifiable

Question 2

What is qualitative data?

Answer 2

Words and data based on subjective interpretation of language - only quantifiable if the data is put into categories and the frequency is controlled

Question 3

What are the problems with qualitative data?

Answer 3

Hard to analyse- need interpretation which can be inaccurate
Isn’t easy to categorise/collate into answer types
Can be left with a lot of responses that can’t be summarised

Question 4

What is primary data?

Answer 4

Data collected directly by the researcher for the purpose of the investigation

Question 5

What is secondary data?

Answer 5

Information collected for a purpose other than the current use

Question 6

What are some examples of secondary data?

Answer 6

Data from other studies/research
Government statistics

Question 7

What is the problems with secondary data?

Answer 7

Can be difficult to know how reliable it is

Question 8

What is a meta-analysis?

Answer 8

The process of combining results from a number of studies on a particular topic to provide an overall view of
Allows us to view data with more confidence and generalise it across much larger populations

Question 9

Why might a meta-analysis be bad?

Answer 9

Can be prone to publication bias - researcher leaves out studies with bad results