5 Common Sampling Techniques Used in Business Research
Question 1: discuss any five (5) common sampling techniques used in business research. Support you answer with relevant examples.
Simple random sampling: The simple random sampling is one of the most widely-used random sampling method. The term “random” here does not mean a haphazard selection as many people think. The “random” in this method means each member of the population has equal opportunities being chosen be subject and no one in the identified population who could not be selected in this method. For example, the teacher wants to choose 5 people in QTB class to stand up and introduce themselves. In order to perform random sampling, each member has to have a specific number as an ID, and those number are put in a random sample list or termed sampling frame. In the example, sampling frame would be the class list. The mechanical and primitive method would be the lottery method. Each number is placed in a bowl or a container and mixed thoroughly. After that, the researcher picks numbers tags from the container without any awareness of what numbers that are. All the individuals bearing the numbers picks are the subjects for the study. Thank to advance technology; another way to perform this sampling would be using computer or calculator to do a random selection from the population. There are two types: sampling without replacement and with replacement in simple random sampling. In the first example about choosing students to introduce themselves, the student who have talk about themselves could not be chosen one more time. So the teachers need to remove their number out of the sampling frame. When we look at another example like lottery, the numbers are picked, and then they are put back to the container. Those numbers, which are put back, may be selected more than once. Simple Random sampling has its advantages and disadvantages. On one hand, the best thing about this random sampling is that it is easy to perform. Moreover it is also
Simple random sampling: The simple random sampling is one of the most widely-used random sampling method. The term “random” here does not mean a haphazard selection as many people think. The “random” in this method means each member of the population has equal opportunities being chosen be subject and no one in the identified population who could not be selected in this method. For example, the teacher wants to choose 5 people in QTB class to stand up and introduce themselves. In order to perform random sampling, each member has to have a specific number as an ID, and those number are put in a random sample list or termed sampling frame. In the example, sampling frame would be the class list. The mechanical and primitive method would be the lottery method. Each number is placed in a bowl or a container and mixed thoroughly. After that, the researcher picks numbers tags from the container without any awareness of what numbers that are. All the individuals bearing the numbers picks are the subjects for the study. Thank to advance technology; another way to perform this sampling would be using computer or calculator to do a random selection from the population. There are two types: sampling without replacement and with replacement in simple random sampling. In the first example about choosing students to introduce themselves, the student who have talk about themselves could not be chosen one more time. So the teachers need to remove their number out of the sampling frame. When we look at another example like lottery, the numbers are picked, and then they are put back to the container. Those numbers, which are put back, may be selected more than once. Simple Random sampling has its advantages and disadvantages. On one hand, the best thing about this random sampling is that it is easy to perform. Moreover it is also