Data collection Flashcards
population
all individuals for a particular investigation
sample
a set of items from a population
Discrete + continuous
- Discrete – categorical
- Continuous – can not be grouped
census vs sample
advantages + disadvantages
random sampling methods
simple random sampling
systematic sampling
stratified sampling
main feature of random sampling
every item has an equal chance of being picked
how to carry it out
advantages + disadvantages
simple random sampling
how to carry it out
advantages + disadvantages
systematic sampling
how to carry it out
advantages + disadvantages
stratified sampling
non random sampling methods
opportunity / convenience sampling
cluster sampling
quota sampling
how to carry it out
advantages + disadvantages
opportunity / convenience sampling
how to carry it out
advantages + disadvantages
cluster sampling
how to carry it out
advantages + disadvantages
quota sampling
self-selection sampling
send out optional surveys BUT biased
