Day 4

- Let's get sampling

Difference between Simple Random Sampling and Convenience Sampling

Simple Random Sampling

• Meaning - The sample is selected on purely simple random basis. Every individual has an equal chance of getting selected from the required population for a particular study. The sample is selected through a draw method which we have seen in many game shows where the chits are made of the whole population and any chit is picked up for announcing the winner.


• Other name – Lottery method


• Representativeness - The sample is representative.
  
• Threat - The sample may not be accessible to researcher, but the results are generalisable.

Convenience Sampling

• Meaning - The sample is selected as per the convenience to the researcher. The individual who is easily accessible to the researcher is selected as a sample from a required population for a particular study.


• Other name - accidental sampling or opportunity sampling


• Representativeness - The sample is not at all representative.


• Threat - The results of the study are not generalisable as the sample is selected on purposive basis.
  

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