The DHS Program User Forum: Weighting data » Survey weight for a Merged IR file of NFHS-4 and NFHS-5

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Re: Survey weight for a Merged IR file of NFHS-4 and NFHS-5 [message #28050 is a reply to message #28038]

Mon, 06 November 2023 09:41

Bridgette-DHS
Messages: 3199
Registered: February 2013

Senior Member

Following is a response from Senior DHS staff member, Tom Pullum:

The forum discussions about combining surveys from different countries would also apply to combining surveys from the same country. I believe your question about the weights is only relevant if you plan to produce estimates or tables that pool the two surveys--for example, to calculate the mean of v201 (children ever born) with the two surveys combined, rather than separate. We advise against doing that. But if you want to calculate the difference between the mean of v201 in the first survey and the mean of v201 in the second survey, and test the statistical significance of that difference, for example, you can indeed do that a little more easily with a combined file, and for that you would leave the weight variable (v005) as it is. No need to re-scale it.

The NFHS-4 and -5 are huge surveys. A disadvantage of combining them is that programs will take a little longer to run.

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		Survey weight for a Merged IR file of NFHS-4 and NFHS-5 By: dnameispaone on Sat, 04 November 2023 03:14
		Re: Survey weight for a Merged IR file of NFHS-4 and NFHS-5 By: Bridgette-DHS on Mon, 06 November 2023 09:41

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