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Re: Calculating fixed and random effects [message #26377 is a reply to message #26363]

Tue, 14 March 2023 13:28

Bridgette-DHS
Messages: 3199
Registered: February 2013

Senior Member

Following is a response from Senior DHS staff member, Tom Pullum:

With a fixed effects model, Stata will run into problems with the sample size in the districts. The omitted districts didn't have cases in all combinations of the covariates. I believe that if you rerun with "asis" included as an option after the comma, it may work. Otherwise, a random effects model would be ok. A very rough rule of thumb is that a random effects model is ok if there are more than 30 units (and you have 80).

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[Message index]

		Calculating fixed and random effects By: Ghose on Thu, 10 May 2018 14:30
		Re: Calculating fixed and random effects By: Bridgette-DHS on Fri, 11 May 2018 11:33
		Re: Calculating fixed and random effects By: Ghose on Fri, 11 May 2018 15:59
		Re: Calculating fixed and random effects By: Bridgette-DHS on Mon, 14 May 2018 14:26
		Re: Calculating fixed and random effects By: Hassen on Wed, 06 June 2018 11:27
		Re: Calculating fixed and random effects By: tasnuva on Wed, 03 October 2018 08:06
		Calculating Fixed Effects By: alohciN on Thu, 21 November 2019 08:03
		Re: Calculating Fixed Effects By: Bridgette-DHS on Fri, 22 November 2019 07:44
		Re: Calculating Fixed Effects By: alohciN on Fri, 22 November 2019 11:41
		Re: Calculating fixed and random effects By: Jenna on Mon, 13 March 2023 14:33
		Re: Calculating fixed and random effects By: Bridgette-DHS on Tue, 14 March 2023 13:28

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