Sampling Flashcards
Cluster Sample
A probability sample that is used when a complete list of all potential observations in a population is not available; the population is divided by some meaningful characteristic, or cluster, and the observations that are included in the sample are those identified from the chosen clusters
Non-probability Sample
A type of sample in which every potential observation has an unknown probability of being included in the sample
Probability Sample
A type of sample based on randomization
Purposive Sample
Nonprobability one where observations are chosen because they are believed to provide strong results for hypothesis
Quota Sample
A non-probability sample which a researcher is guided by a particular characteristic within a population and deliberately chooses a a sample based on the characteristic
Simple Random Sample
The Most basic type of probability sample in which every potential observation in population has an equal chance of being selected for the sample
Snowball Sample
A non-probability sample in which a researcher studies an observation and learns from the inquiry itself that another observation might shed further light on the research question
Stratified Random Sample
A probability sample in which observations form a population are grouped into predetermined categories of importance to the population and then randomly selected by some means that ensures that the resulting sample is proportionate to the predetermined categories
Stratified Sample
A probability sample in which the observations included in the sample are chosen at predetermined intervals from a list
Confidence Sample
Nonprobaility
observation = chosen b/c researcher has best access to them