2.3 Collection of environmental data

Front

Information that is collected by the researcher (e.g., rainfall which is collected daily and recorded).

Back

Primary data

Front

Data that is collected by someone else in a separate investigation (e.g., climate data from the local airport).

Back

Secondary data

Front

Samples based on drawing names or numbers out of a hat, or using a computer program to generate a random list.

Back

Random sampling

Front

Choosing a sample based on regular intervals rather than random selection.

Back

Systematic sampling.