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Publish On: 2019-05-16

Jacob sum

Total Post: 464

Question: How to check the adequacy of data and is suitable for the purpose of investigation

Reply On: 2013-07-18

Gaurabh Raghav

Total Post: 33

ANS: How to check the adequacy of data and is suitable for the purpose of investigation

Steps must be taken to ensure that the survey is under statistical control, that the errors to which it is subject are random and no assignable causes of variation are presents. A system of field cheeks by the supervisors should also be introduced the field check should preferably be carried out on a random sub-sample of units, and should be conducted in such a manner that investigators do not have prior knowledge of the work going to be checked. If it is found that the enumerator is not honest and is not following the instructions. All his returns should be reviewed and is not following the instructions, all his return should be reviewed and he should be removed from the field. If it is found that the data are suitable for the purpose of investigation, they should be tested for adequacy. Adequacy of the data is to be judged in the light of the requirements of the survey and the geographical area covered by the available data. For example, in the illustration given above, if our object is to study the wage rates of the workers in sugar industry in India and if the available data cover only the state of up, it would not serve the purpose. The question of adequacy may also be considered in the light of the time period for which the data are available. For example, for studying trend of prices we may use data for the last 8-10 years but from which would not serve the purpose.

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