Which two sampling methods require that the researcher know something about the salient characteristics of the population (such as race,ethnicity,or gender)before selecting samples?
A)simple random and stratified random
B)stratified random and quota
C)quota and multistage cluster
D)multistage cluster and purposive

Question

Quizplus · Accepted Answer

Stratified random sampling involves dividing the population into strata based on known characteristics, such as race or gender, before randomly selecting samples from each stratum. Quota sampling involves setting quotas for certain characteristics, such as ethnicity or age, before selecting samples to ensure the final sample reflects the population in those characteristics. Both methods require prior knowledge of the population's characteristics.

Which Two Sampling Methods Require That the Researcher Know Something