the Basic
The larger group you would draw a sample from...
Population
Biased sampling technique in which participants are asked to recommend friends, family, colleagues, etc. for the study...
Snowball sampling
Clusters of participants within the population of interest are selected at random...
Cluster sampling
The group of participants (or subjects in some cases) used in a study...
Sample
A catergory name for nonrandom sampling techniques, which result in a biased sample...
Nonprobability sampling
Random sampling technique where a researcher identifies particular demographic categories (strata) and randomly selects participants from each category...
Stratified sampling
Sample is chosen completely at random from the population of interest...
Simple random sampling
A biased sampling technique where only certian kinds of people are included in the sample...
Purposive sampling
All members of the population of interest are equally likely to be included in the sample...
Representative sample
A set of observations containing all members of a population of interest...
Census
Biased sample
A category name for random sampling techniques; a sample is drawn from a population of interest, and every member has equal chance of being included...
Probability sampling
Convenience sampling
Researcher identifies subsets in the population of interest, sets a target number for each category in the sample, and nonrandomly selects participants from each category until the targets are reached...
Quota sampling
When the researcher intentionally overrepresents one or more groups...
Oversampling