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Probabilistic, Sampling - Coggle Diagram
Probabilistic
Stratified
Stratified sampling is a probabilistic sampling technique in which the researcher divides the entire population into different subgroups or strata. Then, randomly select the final subjects from the different strata proportionally
By conglomerates
Conglomerates sampling is a probabilistic sampling procedure in which elements of the population are naturally randomly selected by groupings (clusters). The elements of the sampling are selected from the population individually, one at a time
Simple random
Simple random sampling is a probabilistic sampling procedure that gives each element of the target population and each possible sample of a certain size, the same probability of being selected
Systematic randomness
Systematic sampling is a type of sampling that is applicable when the elements of the population on which the sampling is carried out are ordered. This sampling procedure is based on taking samples in a direct and ordered way from a deterministic rule, also called systematic
Sampling
Non-Probabilistic
Causal
It is a non-probability sampling method where individuals are chosen by chance, without any prior judgment. The people who carry out the study choose a place or a medium, and from there they carry out the study to the individuals of the population who accidentally find themselves at their disposal
By shares
The researcher divides the population into groups or that share the same characteristics (sex, age, region, etc.) and selects individuals to make up the sample. The researcher will be able to make the selection of individuals based on the proportions of the population, either for its convenience or comfort, without the need for it to be random.
Snowball
Researchers use this technique when the sample size is small and not easily available. This sampling system works like the referral program. Once the researchers find suitable subjects, he asks them for assistance to seek similar subjects to form a considerably good size sample
Convenience
Convenience a sampling technique where samples are selected from the population only because they are conveniently available to the researcher. Researchers choose these samples just because they are easy to recruit, and the researcher did not consider selecting a sample that represents the entire population
Discretionary
Discretionary sampling is a type of sampling in which an investigator selects a sample based on their knowledge of the subject. The sample is chosen based on professional criteria and can be based on previous research experience or on the researcher's knowledge of the population.
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