What are the factors on which the reliability of data depends?

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The reliability of sampling data depends on the following factors.

Reliability of Sampling Data

The reliability of sampling data depends on the following factors.

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1. Size of Sample:

For this law to hold good, size of the sample should be large. If the size of the sample is small, conclusions drawn on its bias will lack reliability.

2. Methods of Sampling:

If the method of sampling is not simple it will not adequately represent population. Therefore, the results based on the sample will not be dependable.

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3. Bias of Correspondents:

Personal bias of the correspondents should be less as far as possible. Otherwise, reliability of the sampling data is bound to suffer.

4. Training of Enumerators:

Reliability of sample depends on the training of the investigator. If they are not trained, the sample will lack reliability.

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