geographical skills theory




Planning for an investigation
Data
primary data
unprocessed information: data collected from fieldwork or from material that has not
been analysed or interpreted in any way.
Advantages reliable and not biased, data is up to date
disadvantages time consuming, data could be unreliable or invalid due to…

geographical skills theory




disadvantages interval may coincide with one in the data or location, can't make
valid statistical inferences
Pragmatic sampling
sample where you can get access and where changes are observed, such as
troughs and crests in a sand dunes system
advantages safe, realistic
disadvantages can't make valid statistical…