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Two or three stages? [message #28105] Mon, 13 November 2023 08:25 Go to next message
Lyly is currently offline  Lyly
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Registered: November 2023
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Hi,
What is better: 1) developing a sampling frame composed of primary units (PU), and each primary unit contains 5 secondary units (SU), and in this case, we conduct a 3-stage sampling, drawing a PU and within the PU drawing an SU, and within the SU drawing a household for a household survey; or 2) developing a sampling frame for households composed only of secondary units and conducting a 2-stage draw: drawing an SU and within the SU drawing a household?
Re: Two or three stages? [message #28106 is a reply to message #28105] Mon, 13 November 2023 09:27 Go to previous messageGo to next message
Bridgette-DHS is currently offline  Bridgette-DHS
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Registered: February 2013
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Following is a response from Senior DHS staff member, Tom Pullum:

This is not a question about DHS or DHS data. You will have to consult with a sampling statistician, and I am sure that they will want more information than you have provided about your proposed survey.
Re: Two or three stages? [message #28111 is a reply to message #28106] Tue, 14 November 2023 03:49 Go to previous message
Lyly is currently offline  Lyly
Messages: 2
Registered: November 2023
Member
Thank you, Bridgette, for your response.
In fact, I asked this question because DHS deals with relatively rare phenomena, and I thought that if we directly sample secondary units without going through primary units, we might cover them better. However, I was concerned that estimates from 2 stages, since the master sample is designed for a 3-stage sampling, could negatively impact the estimates.
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