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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Sample |
Small group of people/things taken from a larger sample to represent the larger group |
. |
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Population |
Group of people the results will apply to |
. |
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Random sampling |
Every member of the target population has an equal chance of being selected |
Electoral roll/hat |
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Strength of random sampling |
Unbiased and representative More able to generalise results |
. |
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Weakness of random sampling |
Selected participants might not want to take part Hard to gain access to names of all the population |
D |
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Opportunity sampling |
Anyone who is available at the time of the study and agrees to take part |
C |
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Strength of opportunity sampling |
Quick and convenient Useful for studying processes which are similar eg memory |
. |
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Weakness of opportunity sampling |
Biased sample May not be able to generalise results to all the target population |
, |
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Self selected sampling |
Participants volunteer to take part |
, |
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Strength of self selected sampling |
Quick and convenient Less likely to drop out of the study |
, |
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Weakness of self selected sampling |
Can't generalise findings - less representative Volunteers may be outspoken, have more time or be interested in the topic being studied |
, |
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Snowball sampling |
Asking a participant who fits the target population to ask their friends and so on |
, |
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Strength of snowball sampling |
Possible to find people who are harder to find Convenient an cost effective - researcher doesn't have to find participants |
, |
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Weakness of snowball sampling |
Unlikely to be representative Research may struggle to find someone to find a participant to spread the message |
, |
