topic Can SAS deal with the singleton/lonely PSU in Survey procedures in Statistical Procedures

Can SAS deal with the singleton/lonely PSU in Survey procedures

EPM22 — Tue, 26 Nov 2024 22:43:35 GMT

Is there an option in SAS survey procedures to handle singleton PSUs? The default drops them. Are their options similar to those in stata? I have seen other posts ask this question but have not see an answer. Thanks!

Re: Can SAS deal with the singleton/lonely PSU in Survey procedures

sbxkoenk — Wed, 27 Nov 2024 13:15:34 GMT

Hello ,

@EPM22 wrote:

Is there an option in SAS survey procedures to handle singleton PSUs? The default drops them.

Drops them ???? - all of the data are used for point estimation, but the singleton stratum does not contribute to the variance estimation. With NOCOLLAPSE it does not add a degree-of-freedom either. See Denominator Degrees of Freedom.

What SUDAAN or STATA behavior are you looking for?

Usage Note 23997: Sampling designs supported by the survey procedures

https://support.sas.com/kb/23/997.html

Ciao, Koen

Re: Can SAS deal with the singleton/lonely PSU in Survey procedures

EPM22 — Wed, 27 Nov 2024 13:26:53 GMT

Thank you! I miss read the warning as dropping rather not contributing. Appreciate your response! Best!