| Sampling weight calculation [message #29664] |
Thu, 18 July 2024 11:00  |
Mahir
Messages: 12
Registered: September 2023
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Dear DHS team,
I would like to understand the calculation behind the spmling weight in DHS survey. i have gone through the multilevel modelling manual and I just want to make sure what I have understood is correct. Let me know if my explanation for sampling weight calcualtion is correct.
First P(hi) = a(h) * M(hi)/ M(h)
Let's assume that there are 5 stratas/region in a country and I want to calcualte the sampling weight for strata/region 1. Let's assume there are 12 clusters in strata/region 1 and we selelct 6 of these for sampling. IF there a total of 5000 households in region/strata 1 that means M(h) = 5000 and if there are 90 households in one of the 6 clusters selected for sampling M(hi) = 90
this means P(1hi) = (6*90)/5000 = 0.108
Now P(2hi) = s(hi)/L(hi)
Let's assume that total number of households in one of the selected cluster for sampling is 500 (L(hi)) and total number of households selected for survey in the cluster are 90 (s(hi)).
this means P(2hi)=90/500=0.18
Now sampling weight d(hij) =1/(P(1hi)*P(2hi))
this means d(hij) = 1/(0.108*0.18) =51.44
I have attached a sample figure I created on ym own. Could you tell me if my explanation is correct?
If not, you explain what is wrong in my example.
Thank you for your help
Best
Mahir
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