Quantitative Psychology

Target Population
All members of the group that we're interested in.
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Sample
Selected Members of target population used to study that population.
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Sampling Bias
Over/Under representation of on category.
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Random Sampling
Use a computer-based number generator/draw from a hat. It's the best way to achieve an unbiased sample, as everyone has an equal chance of being selected.
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Stratified sampling
Pre-select groups in the population that are relevant then select each group to proportionally represent the group.
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Quota Sampling
The sample remains up to the discretion of the researcher, this sample is stratified.
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Cluster Sampling
Naturally occurring groups/clusters within a population. An example is when studying religion we may find clusters of Muslims/Christians.
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Self-Selecting samples
Participants that have volunteered.
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Opportunity/Convenience samples.
People asked because they just happen to be there at the time.
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Snowball samples
Participants asks other participants for the researcher. This is often used in qualitative studies requiring in-depth information that may be difficult to come by.
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Other cards in this set

Card 2

Front

Selected Members of target population used to study that population.

Back

Sample

Card 3

Front

Over/Under representation of on category.

Back

Preview of the back of card 3

Card 4

Front

Use a computer-based number generator/draw from a hat. It's the best way to achieve an unbiased sample, as everyone has an equal chance of being selected.

Back

Preview of the back of card 4

Card 5

Front

Pre-select groups in the population that are relevant then select each group to proportionally represent the group.

Back

Preview of the back of card 5
View more cards

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