Unit 3B - Fieldwork - Key terms Flashcards
What is quantitive data with an example from your own data collection?
Data that can be measured, e.g. % vegetation cover
What is qualitative data with an example from your own data collection?
Data that can be observed, not measured, e.g. asking opinions on a questionnaire (e.g. do you think tourism is good or bad for Seahouses’ economy and why?)
What is primary data with an example?
Data that has been collected by you, e.g. % vegetation cover
What is secondary data with an example?
Data that has been collected by someone else and has been processed, e.g. Northumberland Market Town Survey 2009
Why is sampling needed?
Sampling is used as its impossible to sample a whole area or system. It saves time, allows a representation of area or system to be sampled an removes human bias
What is random sampling?
When there is no system and the factor is sampled randomly
What is systematic sampling?
When there is a clear system for sampling, e.g. every 20 metres or only people under 18 yrs old
What is stratified sampling?
Based on knowing something in advance about population or area in question. For example, if you’re surveying attitudes of locals to opening of a supermarket, your sample must reflect age distribution of locals.