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Pooled weights [message #12281] Thu, 20 April 2017 09:15 Go to next message
denisshek
Messages: 2
Registered: April 2017
Member
I am doing an anlaysis using merged data set from different countries and different survey years. I understand that i have to denormalize the weights (v005) after having gone through previous post in the forum, however, i want to be sure i am doing the right thing.

Can i de-normalize such that "the weights in each survey sum up to 1" and then multiply these weights by the population of interest in this case women aged 15-49 years at the time of survey such that each country in total gets weight equal to the population size of women aged 15-49 years at the time of survey.

Thanks.
Re: Pooled weights [message #12283 is a reply to message #12281] Fri, 21 April 2017 07:42 Go to previous messageGo to next message
Bridgette-DHS is currently offline  Bridgette-DHS
Messages: 1078
Registered: February 2013
Senior Member

Following is a response from Senior DHS Stata Specialist, Tom Pullum:


Yes, you can do that. Such weights are sometimes called "inflation" weights. The main problem with that approach, rather than, say, giving the same weight to each country, is that large countries will outweigh small countries and dominate the pooled estimates. I suggest that you try this approach and then see what happens to the estimates when you add or drop various countries--that is, do a sensitivity analysis. There is also a conceptual problem, that the surveys refer to different time points and the countries almost certainly do not comprise a standard geographic region or subregion. However, this is a judgment call by the researcher.


Re: Pooled weights [message #12285 is a reply to message #12283] Fri, 21 April 2017 14:42 Go to previous message
denisshek
Messages: 2
Registered: April 2017
Member
Thanks alot for the prompt reponse.
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