The Sampling Process
Step Description
1. Define the population
The population is defined in terms of a) element, b) units, c) extent and d) time.
2. Specify sampling frame
The means of representing the elements of the population – for example telephone book, map, or city directory – are described.
3. Specify sampling unit
The unit for sampling – for example, city block, company, or household – is selected. The sampling unit may contain one or several population elements.
4. Specify sampling method
The method by which sampling units are to be selected is described.
5. Determine sample size
The number of elements of the population to be sampled is chosen.
6. Specify sampling plan
The operational procedures for selection of the sampling units are selected.
7. Select the sample
The office and fieldwork necessary for the selection of the sample are carried out.
Step Description
1. Define the population
The population is defined in terms of a) element, b) units, c) extent and d) time.
2. Specify sampling frame
The means of representing the elements of the population – for example telephone book, map, or city directory – are described.
3. Specify sampling unit
The unit for sampling – for example, city block, company, or household – is selected. The sampling unit may contain one or several population elements.
4. Specify sampling method
The method by which sampling units are to be selected is described.
5. Determine sample size
The number of elements of the population to be sampled is chosen.
6. Specify sampling plan
The operational procedures for selection of the sampling units are selected.
7. Select the sample
The office and fieldwork necessary for the selection of the sample are carried out.