Research Methods Flashcards
which methods do interpretivists prefer and why
qualitative as high validity
define validity
how accurate it is in real world
define reliability
consistency if tested again
define representativeness
if it reflects whole population
which methods do positivists prefer and why
quantitative
as reliable and respresentative
social surveys, structured questionnaires and official statistics because these have good reliability and
What is random sampling
When a researcher randomly selects participants for research from a list or out of a hat. Every member has equal chance
Who prefers random sampling abs why
Positivists as provided sufficient size representative
What is opportunity sampling
Picked participants based on availability eg on a street
Advantage of opportunity sampling
Practicality as it’s quick
Disadvantages of opportunity sampling
Representativeness
Generalisability
Advantages of random sampling
Practicality size
Representative
Generalisable
What is quota sampling
Sampling frame is in social groups
To make sure there is specific elements like ethnic groups or gender
What is stratified sampling
The sample frame divided into into social groups then random sample from each group
What is systematic sampling
When researcher selects the nth person on sampling frame
Advantages systematic sampling
If from randomised frame list it is representative
Disadvantage systematic sampling
Under represent certain groups
What is snowball sampling
Works like a chain eg chain mail questionaired
Advantage snowball sampling
Large number
Quick
Easy