You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The type of sampling where the individual himself introduces the other subjects of surgery is called as: and explain in detail?
Snowball sampling is a technique for developing a research sample, where existing study subjects recruit future subjects from among their acquaintances.
It is a type of non-probability sampling.
This sampling technique is often used in hidden populations which are difficult for researchers to access; example, drug users or commercial sex workers.
Thus, the sample group appears to grow like a rolling snowball.
Because sample members are not selected from a sampling frame, snowball samples are subjected to numerous biases.