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This in some way sets a bar for selection and thus, reduces the number of people in the sample which can lead to sampling bias. Peter Flom is a statistician and a learning-disabled adult. This method of sampling is also known as subjective or judgment sampling method. Its not interested in having a number that will match the proportions of Expert sampling (or judgment sampling) is where you draw your sample from experts in the field you're studying. D.,2 Carla A. 15 Advantages and Disadvantages of Convenience Sampling (ii) Proper Representation: It ensures proper representation of the universe when the investigation has full knowledge of the composition of the universe and is free from bias, (iii) Avoid Irrelevant Items: It prevents unnecessary and . This purposive technique makes it possible to prove the validity of the information immediately because no one is left out from the sampling process. Research-methodology.net Purposive sampling (also known as judgment, selective or subjective sampling) is a sampling technique in which researcher relies on his or her own judgment when choosing members of population to participate in the study. In this post, we discuss the widely-employed purposive sampling method including what it is, why it works, and you can use it to build a target audience and start gathering insights today. 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. That is why this process is usually reserved for situations where there is already a general consensus in the public about the definitions of certain population groups. Inclination emerges when the technique for choice of test utilized is broken. Purposive sampling lets researchers gather responses for qualitative research, so they get more precise results. Published in final edited form as:PMCID: PMC4012002NIHMSID: NIHMS538401Lawrence A. Palinkas, Ph. 5. Purposive sampling lets you get the most info out of a small population. ScienceBriefss a new way to stay up to date with the latest science news!