In the paper by Matlack (1993) the sampling plots are spaced at regular intervals – not randomly placed. Why did he use this systematic sampling design rather than randomly placed plots?
Systematic sampling has advantages that
It is easy to execute and understand ; these samppes are easy to construct compare execute and understand. This is important for studies that operate with tight bhdget constraints.
Control and sense of process.; this particularly beneficial for studies with strict parameters .
Clustered selection eliminated ; clusteed selection a phenomenon in which randomly chosen samples are uncommonly close together in a population is eliminated in systematic sampling.
Low risk factor
The primary potential disadvantage of the system carry a distinctively low probability of contaminating the data.
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