sampling Flashcards
sampling: what is the focus of research?
the whole population
sampling: where do you then focus on, such as the further specific characteristics?
the target group
sampling: what is the sample group?
the individuals who take part and answer questions etc…
sampling: what is a volunteer sample?
where participants are choosing to take part to be a part of a study
sampling: what is random sampling?
individuals having/being randomly selected from the population, where all individuals within the population have an equal chance of being picked.
sampling: what is stratified sampling?
researchers will divide group into subgroups which are called strata based on characteristics that they share, then another sampling method is used on this group.
sampling: what is a whole population sampling method?
the researchers choose the whole population to base their research on. however they do try to make it specific as possible.
sampling: what is opportunity sampling?
you select participants from a target group to take part in a research study (anyone that is willing and available to take part).
sampling: what is the snow ball sampling method?
individuals gathering information from taking an interest from individuals talking. this then spreads from passing information being each other.
whole population - advantages.
results are based upon high sample number within the target group.
whole population - disadvantages.
increased generalisability
random sample - advantages.
- non-biased
- easy to conduct
- effort is made to ensure the sample is representative of the target population.
random sample - disadvantages
- may not be representative of population
- can be expensive for a large population
stratified random sampling - advantages
- should be representative of the population
- precise way of sampling
- prevents a biased result if the selection is accurate
stratified random sampling - disadvantages
- time consuming to set up
- small samples will skew the results