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Advantages and disadvantages of sampling in research

The methods, using which, we can get the samples; below are given its merits and demerits on the whole. It is economical, because we have not to collect all data.

Merits and Demerits of Sampling Method of Data Collection

Instead of getting data from 5000 farmers, we get it from 50-100 only. As no of units is only a fraction of the total universe, time consumed is also a fraction of total time.

Number of units is considerably small, hence the time. If sample is taken judiciously, the results are very reliable and accurate.

  • According to Prof R;
  • Absence of Being Representative:

As samples are taken and the number of units is smaller, the better Trained enumerators can be employed by the organisation.

According to Prof R. They are Speed, Economy, Adaptability and Scientific approach.

  • There is not even a single method of sampling which has no demerit;
  • If universe is bigger, there remains no option but to proceed for this method;
  • Number of units are so less.

A detailed study can be undertaken in case of the units included in the sample. Size of sample can be taken according to time and money available with the investigator.

Type of Sampling

If universe is bigger, there remains no option but to proceed for this method. It is specially used for infinite, hypothetical and perishable universes.

  • Number of units is considerably small, hence the time;
  • They are Speed, Economy, Adaptability and Scientific approach;
  • Number of units are so less;
  • Size of sample can be taken according to time and money available with the investigator.

Absence of Being Representative: Methods, such as purposive sampling may not provide a sample, that is representative. If the sample is not representative, the results will not be correct.

Michael Porters Strategic Tools

These will lead to the wrong conclusions. Sometimes universe is so small that proper samples cannot be taken not of it.

  1. It is specially used for infinite, hypothetical and perishable universes. Number of units is considerably small, hence the time.
  2. As no of units is only a fraction of the total universe, time consumed is also a fraction of total time.
  3. 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.

Number of units are so less. It is a scientific method.

Advantages & Disadvantages of Sampling Method of Data Collection

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. The results which are achieved though the analysis of sampling data may not be accurate as this method have inherent defects.

Simple Random Sampling

There is not even a single method of sampling which has no demerit. This method of sampling has many errors. As in many cases the investigator, chooses samples, such as convenience method, chances of personal bias creep in.