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LATEST NEWS UPDATES | Why the integrity of data matters -A Vaidyanathan

Why the integrity of data matters -A Vaidyanathan

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published Published on May 30, 2019   modified Modified on May 30, 2019
-The Hindu

The merger of the NSSO into the Central Statistics Office is a cause for concern

The announcement that the government has decided to merge the National Sample Survey Office (NSSO) into and under the Central Statistics Office (CSO) has caused both surprise and concern. What exactly the ‘merger’ means remains unclear. Recent attempts to question the veracity of National Sample Survey (NSS) data and the way the issue has been handled have given rise to apprehensions within academia, State governments and the media about the prospect of radical changes in the present system for deciding substantive issues of scope, design, scrutiny and validation of the surveys.

The present system

Under the present system, every year various departments of government send a list of subjects that they would like to be investigated by the NSSO. The requests are sent to the National Statistical Commission (NSC), which has respected economists, subject matter specialists and statisticians from government, including the head of the CSO and senior officials of the NSSO responsible for technical aspects of design and conduct of field work, as well as representatives of State governments. Subject matter specialists in particular fields are also brought in. The proposals are discussed at length keeping in view the budget allocations, availability of trained field staff and supervisors. In doing so, the conduct of periodic surveys on important issues is also considered. (It should be noted that budget allocations, and personnel of the NSSO have always been under the Department of Statistics.)

After providing for periodic repeat surveys (at quinquennial or decennial intervals) of some important aspects (notably consumer expenditure, employment, social consumption, land holdings, rural savings and investments), the subjects to be covered in a particular year and the scope of the inquiry are decided.

The tasks of sampling design, the scope and content of information to be collected, design of schedules and protocols of field work are left to be decided by special working groups. These groups are chaired by experts from academia, and senior officials of the CSO and the NSSO, State government representatives as well as select non-official experts. These working groups are in continuous session from the inception of each round through all the subsequent steps. Discussions of concepts, questionnaire design, field work schedules and supervision are continuous, detailed and highly professional. Once the field work is over, the groups decide the detailed tabulation programme, and the tables to be prepared for publication. The tabulated results are discussed in detail by the NSC and are published after its approval.

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The Hindu, 30 May, 2019, https://www.thehindu.com/opinion/op-ed/why-the-integrity-of-data-matters/article27297860.ece?homepage=true


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