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Re: Compare two surveys [message #24771 is a reply to message #24742]

Thu, 07 July 2022 12:34

Janet-DHS
Messages: 938
Registered: April 2022

Senior Member

Following is a response from DHS Research & Data Analysis Director, Tom Pullum:

You can pool the IR files from the two surveys into a single file. In Stata, this is done with the "append" command. Define a variable "survey" that is 0 for the cases in the 2015 survey and 1 for the cases in the 2019 survey. Then you can do the same kind of regression that you would do for a single survey, but in the pooled file you include "survey" as a covariate or predictor. If the coefficient for "survey" is statistically significant, then the relationship of the outcome to the other covariates has changed. This is a simple description of a strategy we often use at DHS.

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[Message index]

		Compare two surveys By: kmdshoyaib on Mon, 04 July 2022 01:53
		Re: Compare two surveys By: Janet-DHS on Thu, 07 July 2022 12:34
		Re: Compare two surveys By: kmdshoyaib on Thu, 28 July 2022 22:01
		Re: Compare two surveys By: Janet-DHS on Mon, 01 August 2022 12:34
		Re: Compare two surveys By: kmdshoyaib on Thu, 28 July 2022 22:03
		Re: Compare two surveys By: Nikee on Wed, 30 November 2022 12:08
		Re: Compare two surveys By: Janet-DHS on Tue, 06 December 2022 09:19

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