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Handling data. Using surveys. What does a good survey do?. Gathers information. Keeps information in categories. Makes information easy to use at a later date. Which is a better question?. I want to know what washing up liquid people use. Should I ask…… Do you use fairy washing up liquid?
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Handlingdata Using surveys
What does a good survey do? • Gathers information. • Keeps information in categories. • Makes information easy to use at a later date.
Which is a better question? • I want to know what washing up liquid people use. • Should I ask…… • Do you use fairy washing up liquid? • Which brand washing up liquid do you use?
Good or bad question? • I want to know if people have seen the film Casino Royale. • Do you like James Bond films? • Did you see the film Casino Royale?
Good or bad question? • I want to know what the weather was like yesterday. • What was the weather like? good ok rubbish • What was the weather like? sunny raining windy dry
Do you have a better suggestion? • I want to know how many hours people play computer games in a week. • Question: How many hours do you play computer games? 1 2 3 4
Do you have a better suggestion? • I want to know how people travel to work. • Question: Do you travel to work by car?
Design your own questions. • I want to know about people’s holiday choices. • Things to include: • Age of person. • Destination. • People who went. • How long they went for. • When they went. • Type of accommodation.
Using surveys • When using a survey it is important to follow a few rules to make your results as useful as possible. • Use random sampling. • Location of survey. • Age of people.
Using a survey • You are investigating which computer games children like best. • Where would you do your survey? • Would you ask every fifth person?