Flashcards
Sampling
Flashcards do conjunto (16)
- 1SamplingWho is going to participate
- 2Issue of external validity?To what degree can one generalise the findings from sample to population?
- 3RepresentativeIt is important that the Sample be Representative of the Population
- 4Sampling FrameThe actual part of the population from which I draw my sample
- 5SampleThe subset of the sampling frame from which I obtain data
- 6Probability SamplingExpensive, time consuming, better than non-probability sampling
- 7Single Random SamplingEvery person in the population has an equal chance of being sampled. From a list of all members, but sometimes some members are not included, e.g., home school children.
- 8Stratified Random SamplingDivide population along dimensions (e.g., gender) and be sure that you sample sufficiently across these dimensions. Can Oversample for important dimensions, e.g., ethnicity
- 9Cluster SamplingObtain participants fom pre-existing groups or clusters. E.g., Children from NZ schools
- 10Non-probability SamplingCheap, easier, but not representative
- 11Haphazard SamplingConvenience sampling, handy for the researcher, but biases are introduced.
- 12Quota SamplingObtain appropriate percentages of different types of participants (e.g., gender, etc.), but one is still obtaining these participants from readily available sources so not representative but more so. Also introduces biases
- 13Purposive SamplingYou select individuals who fit within a particular category to fit a purpose. E.g., testing/sampling from people who have previously had depression
- 14Most common and why?Most psychologists use haphazard non-probability sampling. They only want to explore the relationships between variables. It is much cheaper
- 15BiasesIf sample frame is hetrogeneous with population then biases are introduced. It is non-representative
- 16Creative approaches to collecting data and encouraging compliancePassive consent (please tell us if you don't want to participate), but this can be controversial. Compensation and Inducements. Interesting ways to collect data; laptops; internet; Ipads. The "personal touch" using interviews (time consuming, expensive). Underutilised Samples (kids in Camps, kids in malls)
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- Descrição
- (Psychology Research Methods) FlashCards sobre Sampling, criado por cjjstone em 07-05-2014.
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- cjjstone
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