What is voluntary response sampling?

Answer

A voluntary response sampling is a sampling in which people volunteer to participate in a survey. This is a form of biased sampling. It is impossible to get random sample using this sampling method.

Voluntary response sampling is heavily biased because it focuses on volunteered survey answers rather than a random sampling. What makes this biased is because the only people who volunteer are those who have a particular interest in the topic of the survey. For example, if the survey is about feelings surrounding a particular religion, only those who feel strongly about it volunteer. This means that the resulting samples have two extreme sides with few or no middle-of-the-road responses to mellow out the results. This results in a sample that is not representative of the population. The bias often skews negative, as well.

Voluntary response sampling is useful for supporting a biased stance. For instance, if a website is anti-war and puts out a poll to its users, its users are also likely to be anti-war. The results of the poll, then, would have an anti-war view point, which the website can then cite as evidence that a population supports their views. In this way, voluntary response sampling can help research that has an agenda.

Q&A Related to "What is voluntary response sampling?"
Suppose there is a group of people. There are 500 people in the group. They want to fill out a form and mail it to a certain address. They give the firm and address to each and everyone
http://wiki.answers.com/Q/What_is_a_voluntary_resp...
A voluntary response sample is a sampling method in which the
http://www.chacha.com/question/what-is-the-definit...
This isn't a question about law or ethics, but I'm guessing is about polls. Voluntary response sample is if you put a poll somewhere, or on the TV, and your sample consists of people
http://answers.yahoo.com/question/index?qid=201309...
Good luck
http://uk.answers.yahoo.com/question/index?qid=201...
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