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Snowball sampling, also known as chain-referral sampling, is a non-probability sampling method where currently enrolled research participants help recruit future subjects for a study. Snowball sampling is often used in qualitative research when the population is hard-to-reach or hidden.
Snowball sampling is a non-probability sampling method where new units are recruited by other units to form part of the sample. Snowball sampling can be a useful way to conduct research about people with specific traits who might otherwise be difficult to identify (e.g., people with a rare disease).
In sociology and statistics research, snowball sampling [1] (or chain sampling, chain-referral sampling, referral sampling [2] [3]) is a nonprobability sampling technique where existing study subjects recruit future subjects from among their acquaintances. Thus the sample group is said to grow like a rolling snowball.
Snowball sampling or chain-referral sampling is defined as a non-probability sampling technique in which the samples have rare traits. This is a sampling technique, in which existing subjects provide referrals to recruit samples required for a research study.
Snowball sampling is an exampling of a non-probability sampling method, which means that not every member in a particular population has an equal probability of being selected for a study.
Use the snowball sampling method when working with a population that is difficult to find. For example, use it for projects that work with criminals, drug addicts, undocumented workers, have a severe social stigma, involves a sensitive topic, or a rare condition.
Snowball sampling (also known as chain-referral sampling) is a non-probability (non-random) sampling method used when characteristics to be possessed by samples are rare and difficult to find.
Snowball sampling is a non-probability method allowing researchers to tap into hard-to-reach populations. Often used in qualitative designs, it allows researchers to recruit participants through referrals.
Snowball sampling is where research participants recruit other participants for a test or study. It is used where potential participants are hard to find.
Snowball sampling is a well-known, nonprobability method of survey sample selection that is commonly used to locate hidden populations. This method relies on referrals from initially sampled respondents to other persons believed to have the characteristic of interest.