This process continues until the cluster can’t be divided anymore.
For example country can be divided into states, cities, urban and rural and all the areas with similar characteristics can be merged together to form a strata.
Taking an example of N=20, n=5No of elements in each of the subgroups is N/n i.e 20/5 =4= k Now, randomly select first element from the first subgroup.
If we select n1= 3n2 = n1 k = 3 4 = 7n3 = n2 k = 7 4 = 11Multi-Stage Sampling It is the combination of one or more methods described above.
And then the elements are randomly selected from each of these strata.
John Fiske Darwinism Other Essays - Sampling Methods For Research Papers
We need to have prior information about the population to create subgroups.In Sampling: The basics, we including terms such as units/cases/objects, sample, sampling frame, population, sample size, random sampling, sampling bias, amongst other terms.If you are already confident that you understand these basic principles of sampling, we introduce you to the two major groups of sampling techniques that you could use to select the units that you will include in your sample: We explain what each of these types of sampling technique are, how to create them, and their advantages and disadvantages.The sampling strategy that you select in your dissertation should naturally flow from your chosen research design and research methods, as well as taking into account issues of research ethics.To set the sampling strategy that you will use in your dissertation, you need to follow three steps: (a) understand the key terms and basic principles; (b) determine which sampling technique you will use to select the units that will make up your sample; and (c) consider the practicalities of choosing such a sampling strategy for your dissertation (e.g., what time you have available, what access you have, etc.).Cluster Sampling Our entire population is divided into clusters or sections and then the clusters are randomly selected.All the elements of the cluster are used for sampling.Population is divided into multiple clusters and then these clusters are further divided and grouped into various sub groups (strata) based on similarity.One or more clusters can be randomly selected from each stratum.If you have access to a journal via a society or association membership, please browse to your society journal, select an article to view, and follow the instructions in this box.Contact us if you experience any difficulty logging in.