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Re: Melogit and Weights [message #21977 is a reply to message #21814]

Tue, 12 January 2021 18:26

BillC
Messages: 6
Registered: July 2020

Member

Hi Tom,

Another quick clarification on weight for multilevel analyses. To recap, I am combining the mens and womens datsets for a multilevel analyses. (Code is from DHS Report #27 (Multilevel Modeling Using DHS Surveys: A Framework to Approximate Level-Weights)

Two questions:
Q1: Do I need to adjust v005 BEFORE I run this code below?

gen wt=v005/1000000
gen DHSwt = v005/1000000
* Steps to approximate Level-1 and Level-2 weights from Household or Individual Weights
* Step 1. De-normalize the final weight, using approximated normalization factor
gen d_HH = DHSwt * (M/m_c)
*Step 2. Approximate the Level-2 weight
* f the variation factor
gen f = d_HH / ((A_h/a_c_h) * (M_h/S_h))
scalar alpha=0.5
gen wt2 = (A_h/a_c_h)*(f^alpha)
gen wt1 = d_HH/wt2
* Svyset
svyset v001, strata(v022) weight(wt2) singleunit(centered) || _n, weight(wt1)
........

Q2:if yes, then the adjustment factor for women = (population of 15-49yr women in country)/number of 15-49 yr women sampled; and for men = (population of men 15-49 yrs in country)/number of men 15-49 yrs sampled - as per the code below?

*adjusting weights of men and women in combined dataset
gen wtfactor=.
replace wtfactor=(xxxxxxxx/29461) if sex==2 //dividing population of women 15-49 yrs in country by number interviewed in 15-49 yrs
replace wtfactor=(yyyyyyy/10760) if sex==1//dividing population of men 15-49 yrs in country by number of men interviewed
label variable wtfactor "Multiplication factor for wt(v005)"

gen wt=v005/1000000
gen newwt=wt*wtfactor
label variable newwt "Population adjusted sample weight"
gen DHSwt = newwt/1000000

(then run code above...)

Many thanks!

Bill

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[Message index]

		Melogit and Weights By: Yawo on Thu, 23 July 2020 09:38
		Re: Melogit and Weights By: Bridgette-DHS on Wed, 05 August 2020 08:53
		Re: Melogit and Weights By: Yawo on Thu, 06 August 2020 00:47
		Re: Melogit and Weights By: Bridgette-DHS on Thu, 06 August 2020 08:43
		Re: Melogit and Weights By: Yawo on Thu, 06 August 2020 12:15
		Re: Melogit and Weights By: Bridgette-DHS on Fri, 07 August 2020 09:29
		Re: Melogit and Weights By: Yawo on Fri, 07 August 2020 10:04
		Re: Melogit and Weights By: Yawo on Mon, 10 August 2020 11:01
		Re: Melogit and Weights By: BillC on Mon, 21 December 2020 21:12
		Re: Melogit and Weights By: Yawo on Tue, 22 December 2020 04:32
		Re: Melogit and Weights By: Bridgette-DHS on Tue, 22 December 2020 09:47
		Re: Melogit and Weights By: BillC on Tue, 22 December 2020 11:32
		Re: Melogit and Weights By: Bridgette-DHS on Wed, 23 December 2020 06:37
		Re: Melogit and Weights By: BillC on Tue, 12 January 2021 18:26
		Re: Melogit and Weights By: Bridgette-DHS on Wed, 13 January 2021 09:27
		Re: Melogit and Weights By: BillC on Wed, 13 January 2021 09:57
		Re: Melogit and Weights By: Alessandra tangianu on Sun, 19 February 2023 09:58
		Re: Melogit and Weights By: Bridgette-DHS on Tue, 21 February 2023 08:25

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