Data collection and sampling

'What is your biggest fear?'

This is an example of...

• Open-ended question

• Closed question

'Which subject do you like better - Mathematics or Geography?'

This is an example of...

• Open-ended question

• Closed question

Which ones are examples of qualitative data? (Select 2)

• Line graphs

• Photographs

• Bar charts

• Interviews

This is a pie chart. This is an example of...

• Qualitative data

• Quantitative data

This is a bar chart. This is an example of...

• Qualitative data

• Quantitative data

Random sampling is when you select a person to interview or a site to measure at random

• True

• False

This type of sampling is when you collect data in an ordered or regular way, e.g. every 5 metres or every third person.

• Random sampling

• Systematic sampling

• Stratified sampling

This type of sampling is when you dividing samples into groups, e.g. one person per line

• Random sampling

• Systematic sampling

• Stratified sampling

We need samples because it would be impossible to interview everyone

• True

• False

Which one is NOT an open-ended question?

• What activities in school do you enjoy?

• Why do you not like school?

• Why do you like school?

• Do you like school?