Weighting in pooled data [message #9771] |
Mon, 16 May 2016 07:54 |
owraza
Messages: 37 Registered: December 2013 Location: Nebraska, US
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I have tried to read extensively about weighting posted on this forum (also, re-watched the DHS webinar on weighting) and while doing so I found one comment by Tom Pullum (DHS) in message # 6672, quoting:
"If you construct a cluster-level variable using the collapse command, it is not necessary to use weights at all, because everyone in the same cluster has the same weight. To confirm this, you could collapse WITH weights and then collapse WITHOUT weights, and compare the two sets of numbers. They should be exactly the same.
However, if you want to collapse for a larger aggregate, such as a district or region, which includes more than one cluster, you definitely should use weights as part of the collapse."
My concern in this regard is, does this information still valid for a scenario where I have to pool various countries together (after collapsing at cluster level) and run regression analyses? Any suggestion where do I apply weighting?
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