6. Sampling AO3 Flashcards
A strength of opportunity sampling
Quick method - convenient - making use of people closest - most popular
A weakness of opportunity sampling
Inevitably biased - unrepresentative sample of target population - drawn from specific area - lacks generalisability
A strength of volunteer sampling
Participants willing - selected themselves - know what is involved - engage more
A weakness of volunteer sampling
Biased sample - participants likely share traits- e.g. being keen - generalisations limited - volunteer bias
A strength of random sampling
Potentially unbiased - researcher has no influence - free from researcher bias
A weakness of random sampling
Representation not guaranteed- can still create biased sample - limits generalisability
A strength of systematic sampling
Unbiased - usually nth person is random
A weakness of systematic sampling
Takes time & effort - easier to use random sampling
A strength of stratified sampling
Representative method - characteristics of target population represented - generalisability more likely than other methods
A weakness of stratified sampling
Stratification not perfect - cannot reflect all ways people are different - complete representation not possible