Sampling method has no demerits. (State with reasons whether you agree or disagree with given statement)
Answers
1. Absence of Being Representative:
Methods, such as purposive sampling may not provide a sample, that is representative.
2. Wrong Conclusion:
If the sample is not representative, the results will not be correct. These will lead to the wrong conclusions.
3. Small Universe:
Sometimes universe is so small that proper samples cannot be taken not of it. Number of units are so less.
4. Specialised Knowledge:
It is a scientific method. Therefore, to get a good and representative sample, one should have special knowledge to get good sample and to perform proper analysis so that reliable result may be achieved.
5. Inherent defects:
The results which are achieved though the analysis of sampling data may not be accurate as this method have inherent defects. There is not even a single method of sampling which has no demerit.
6. Sampling Error:
This method of sampling has many errors.
7. Personal Bias:
As in many cases the investigator, chooses samples, such as convenience method, chances of personal bias creep in.
I totally disagree with the state that " Sampling method has no demerits" because every coin has two sides so it is also having demerits and it's demerits are:
1) Opting for sampling method is totally a judgemental task and can be baised as per the mindset of the person.
2) If techniques adopted for sampling is improper then the whole survey will be of no use.
3) Selecting exact and proper size of sample is a very difficult job.
4) Inaccuracy that can happen by excluding some items from sample which leads to wrong results.