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Summary Module and Lecture 3 of IRM: Sampling
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Module and Lecture 3 of IRM: SamplingStudy online at https://quizlet.com/_dbou5y
1. What is Sampling? taking a fraction of the whole that can still provide
us with information about the whole.
2. What are the 4 Types 1. Theoretical population: Who do you want to
of sampling population study?
questions?
2. Study population: What group do you have ac-
cess to?
3. Sampling frame: How do you access the popula-
tion?
4. Sample: Who is in you study?
3. What is Probability Every single individual in your population has an
sampling? equal chance to be included in the sample.
Often used in qualitative research
4. What is the Advantage Advantage:
and Disadvantage of - Results are generalizable
Probability sampling?
Disadvantage:
- Difficult to administer
5. What are the 4 main 1. Simple random sampling
types of Probability 2. Systematic sampling
Sampling? 3. Stratified sampling:
4. Clustered sampling
6. What is Simple Random - Participants are randomly selected.
Sampling? - There is low selection bias and generalizability,
but it is difficult to administer.
7. What is Systematic - Every nth person is chosen.
Sampling? - However, there is still bias present, based on how
you select.
8. What is Stratified Sam- - The population is divided into sub-groups (stra-
pling? tum) and a random sample is selected from each
1/4
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