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EPM22
Calcite | Level 5

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! 

2 REPLIES 2
sbxkoenk
SAS Super FREQ

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

EPM22
Calcite | Level 5
Thank you! I miss read the warning as dropping rather not contributing. Appreciate your response! Best!

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