sampling Flashcards
what do sampling techniques depend on
aim of the study
available resources
nature of target population
types of sampling techniques
random sampling
stratified sampling
convenience sampling
self selected sampling
random sampling
every member of the target population has an equal chance of being selected
why can random sampling represent the target population most accurately
because it considers all possible characteristics, even the ones you may have never suspected to play a role
when is random sampling not feasible?
when the target population is too large
ex: all teenagers in the world
stratified sampling
the researcher chooses the characteristics of the target population wished to be studied and then chooses the sample that best reflects these desired characteristics
convenience sampling
researcher recruits participants that are easily available
self selected sampling
researchers recruit volunteers