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Re: using svy command and getting out p-values [message #12051 is a reply to message #12050]

Thu, 23 March 2017 10:01

Bridgette-DHS
Messages: 3230
Registered: February 2013

Senior Member

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

You cannot "merge" the IR and MR files. You "append" those files. Your line "svyset [pw=wgt1], psu (v001) strata (v023)" will not run. The correct syntax would be "svyset v001 [pw=wgt1], strata (v023)". Your commands should not include the option "missing". What you are calling "missing" cases are actually "not applicable" cases and they are not relevant.

The "uncorrected chi2" value ignores the svyset adjustment. You could get that from a simple "tab a b, chi2" command. The "Design based" model cannot produce a chi-square statistic (neither the Pearson nor the maximum likelihood versions of chi-square), as I said in my previous response. It produces an F statistic from a logit regression (either binary logit or a multinomial logit, depending on the number of categories), in which the svyset adjustment is possible. The p-value from F has the same interpretation that a p-value from a maximum likelihood chi-square would have, if such a chi-square could be calculated.

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[Message index]

		using svy command and getting out p-values By: chichi on Wed, 15 March 2017 13:10
		Re: using svy command and getting out p-values By: Mlue on Thu, 16 March 2017 04:56
		Re: using svy command and getting out p-values By: Bridgette-DHS on Thu, 16 March 2017 08:09
		Re: using svy command and getting out p-values By: chichi on Thu, 16 March 2017 09:48
		Re: using svy command and getting out p-values By: Bridgette-DHS on Fri, 17 March 2017 08:10
		Re: using svy command and getting out p-values By: chichi on Wed, 22 March 2017 13:27
		Re: using svy command and getting out p-values By: Bridgette-DHS on Thu, 23 March 2017 08:59
		Re: using svy command and getting out p-values By: chichi on Thu, 23 March 2017 09:19
		Re: using svy command and getting out p-values By: Bridgette-DHS on Thu, 23 March 2017 10:01
		Re: using svy command and getting out p-values By: chichi on Thu, 16 March 2017 09:26

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