In which one of the sampling methods, units comprising its constituents are…
2020
In which one of the sampling methods, units comprising its constituents are groups taken intact rather than individually?
- A.
Cluster sampling method
- B.
Simple random sampling method
- C.
Systematic sampling method
- D.
Dimensional sampling method
Attempted by 1 students.
Show answer & explanation
Correct answer: A
Correct answer: Cluster sampling method.
In cluster sampling, the population is first divided into mutually exclusive groups called clusters (for example, schools, city blocks, or households). Whole clusters are then selected, and every unit within a chosen cluster is taken intact as a group, rather than picking individual units one by one. This is exactly the situation the question describes: the sampling units are groups taken as a whole instead of being chosen individually.
By contrast, simple random sampling and systematic sampling both select individual units directly from the population, and dimensional sampling is a refinement of quota sampling based on combinations of population characteristics, none of which take groups intact.