Which sampling is known as Judgement sampling?
|
Definition: The Judgement Sampling is the non-random sampling technique wherein the choice of sample items depends exclusively on the investigator’s knowledge and professional judgment. In other words, the investigator chooses only those sample items which he feels to be the best representative of the population with regard to the attributes or characteristics under
investigation. The judgement sampling is not a scientific method as the sample items are selected on a judgement basis and hence the results could be affected by the personal prejudice or bias of the investigator. Thus, the judgement sampling involves the risk that the conclusion drawn could be influenced by the preconceived notions of the investigator about the elements under study. Even though the
principles of sampling do not apply to the judgement sampling, it can be used for solving several economic or business problems, such as: Thus, the success of this method depends on the excellence in judgment. If the person is knowledgeable about the population and has a good judgment ability, then the sample selected will be typical of the population with regard to the attributes or characteristics. On the other hand, the skewed results are obtained if the selection
suffers from the personal prejudice or bias of the investigator. Reader InteractionsIn judgemental sampling, the choice of sample items depends exclusively on the judgement of the investigator. This means that the investigator includes those sample points which he feels are representative of the population under study. For example, if the researcher wants to investigate the study habits of 100 students in a class, he may exercise his own judgement and choose 10 students who, in his opinion, are representative of the entire class. Another example of judgemental sampling is in archaeology. An archaeologist does not choose the site of excavation randomly. He uses his knowledge of the history of the area and exercises judgement in order to choose which site to excavate. The principles of sampling theory cannot be applied to judgement sampling, since it is not a random sampling method. Judgemental sampling is used to solve many times of problems in economics and business. Advantages of Judgemental Sampling:
Disadvantages of Judgemental Sampling:
Hey 👋 I'm currently pursuing a Ph.D. in Maths. Prior to this, I completed my master's in Maths & bachelors in Statistics. I created this website for explaining maths and statistics concepts in the simplest possible manner. If you've found value from reading my content, feel free to support me in even the smallest way you can. Which sampling is also known as Judgement sampling?Purposive sampling
This type of sampling, also known as judgement sampling, involves the researcher using their expertise to select a sample that is most useful to the purposes of the research.
What is Judgement or purposive sampling?Purposive sampling, also known as judgmental, selective, or subjective sampling, is a form of non-probability sampling in which researchers rely on their own judgment when choosing members of the population to participate in their surveys.
Where is Judgement sampling used?The use of judgmental sampling is appropriate in three situations: (1) to select unique respondents who are especially informative; (2) to select members of a difficult-to-reach, specialized population; (3) to identify particular types of respondents for in-depth investigation.
Is Judgement sampling a type of statistical sampling?Judgmental sampling, which is not statistically based, includes gathering a selection of items for testing based on examiners' professional judgment, expertise, and knowledge.
|
