What are the advantages of purposive sampling?

Answer

The main advantage of purposive sampling is that a researcher can reach a targeted sample quickly. It is easy to get a sample of subjects with specific characteristics. Additionally, researchers are able to draw on a wide range of qualitative research designs.

Purposive sampling saves time, money and effort. It is flexible and meets multiple needs and interests. It enables researchers to select a sample based on the purpose of the study and knowledge of a population. They choose subjects because of certain characteristics.

The primary objective of this type of non-probability sample is to produce a sample that is representative of a particular population. This is done by using the researcher’s expert knowledge of the population and selecting a sample of elements in a non-random manner.

Another major advantage of this type of sampling is the wide range of sampling techniques that researchers can use across different qualitative research designs. Typically, qualitative research designs involve multiple phases and require different types of sampling techniques at every phase. Purposive sampling becomes useful in this situation, because it offers a wide selection of non-probability sampling techniques. For example, a researcher can use critical case sampling to determine if a phenomenon is worth investigating further. Then, he can use expert sampling to examine specific issues.

Various purposive sampling techniques allow researchers to make generalizations from the sample that is being studied, whether these generalizations are logical, analytic and/or theoretical in nature.

Q&A Related to "What are the advantages of purposive sampling?"
Foremost, the random purposeful sample is a purposeful sample, meaning the researchers employing sampling decided to choose a specific group of people or objects within a population
http://www.ehow.com/info_8595186_random-purposeful...
Snowball sampling can be used in a number of circumstances. Sometimes the researcher may be able to identify only a small number of individuals in the target group but these people
http://wiki.answers.com/Q/What_is_the_purpose_of_s...
There really aren't any other than saving you possibly the three seconds it would take for you to add baking powder to the flour on your own. I find that Bisquick gives an odd,
http://www.quora.com/Baking/What-advantages-does-B...
Cores indicate variations of climate, species and sedimentary composition
http://www.chacha.com/question/what-is-the-purpose...
Explore this Topic
Probability sampling is the method of sampling that uses a form of random selection. One of the main advantages of probability sampling is that it offers a feeling ...
One of the bigger advantages of quota sampling is that the researcher has complete control over the sample. It also allows samples to be completed in a short amount ...
Purposive sampling is using knowledge of the study and the population to choose participants. It is not a random sampling that looks at the whole population. Purposive ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com