U2: Sampling methods Flashcards
What is a sample in research?
The group of participants in a piece of research.
What is the target population?
The group of people a researcher wants to generalize findings to.
What is opportunity sampling?
Making use of people who are readily available and match the target population.
How does random sampling work?
Every member of the target population has an equal chance of being selected.
What is a volunteer/self-selecting sample?
Participants respond to an advert to be part of the study.
What is stratified sampling?
Breaking the target population into segments and taking the correct proportion from each segment.
Fill in the blank: A sample must be _______ of the target population.
[representative]
True or False: Small samples are generally more representative than larger samples.
False
What is a key disadvantage of opportunity sampling?
It may not accurately represent the target population.
What is a potential issue with random sampling?
It requires access to the names of all members of the target population.
In stratified sampling, how should the number of participants be determined?
By the popularity of each course or segment within the target population.
Fill in the blank: In volunteer sampling, the psychologist uses _______ to attract participants.
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