Question

For these 4 methods of sampling -

1. Simple Random Sampling Method

2. Judgement Sampling Method

3. Systematic Sampling Method

4. Stratified Sampling Method

Please provide the following for each method:

a. Provide 1-3 sentences to describe using your own words

b. Identify whether it is a random or non-random sample

c. Identify a merit of the sampling approach

d. Identify a limitation of the sampling approach

Answer 1

a)

1. Simple Random Sampling Method : It is the technique of drawing a sample in such a way that each unit of the population has an equal and independent chance of being included in the sample.

2. Judgement Sampling Method : In this sampling, the sample is selected with definite purpose and the choice of the sampling units depends on the judgement of the investigator.

b)

1. Simple Random Sampling Method : It is a random sampling

2. Judgement Sampling Method : It is a non random sampling

c)

1. Simple Random Sampling Method :1) In this sampling each unit has an equal chance of being selected. 2) subjectivity or personal bias is completely eliminated

2. Judgement Sampling Method : If the investigator is experienced and skilled and this sampling is carefully applied, then it may yield valuable results.

d)

1. Simple Random Sampling Method : The selection of a simple random sample requires an up-to-date frame. 2) Some times simple random sample give most non-random looking results.

2. Judgement Sampling Method: this sampling method is seldom used and cannot be recommended for general use since it is often biased due to element of subjectivenedd or the part of the investigator.