BookmarkSubscribeRSS Feed
mikepesko
Calcite | Level 5
Hello, I'm working with the TUS-CPS data and the data manual informs me that using SUDAAN the appropriate Fay adjustment factor is 4. However, using SAS the Fay adjustment factor needs to be a number between 0-1 with .5 used as the default. Does anybody know how to convert the 4 using SUDDAN to the 0-1 Fay adjustment factor range for SAS analysis?

proc surveylogistic VARMETHOD=BRR (FAY=);
REPWEIGHTS srepwt001-srepwt160;
model...
run;

Thank you.
1 REPLY 1
DWilson
Pyrite | Level 9

In SUDAAN you specify a term called ADJFAY. ADJFAY=(1/(1-k)^2) where k is the Fay factor.

 

Setting ADJFAY equal to 4 and solving for k gives a value of k=.5.

 

Use k=.5 with SAS, assuming they want you to specify the actual FAY factor: e.g. where k corresponds to the value used to multiply some of the weights and 2-k is the value used to multiply the other weights.

 

sas-innovate-2024.png

Join us for SAS Innovate April 16-19 at the Aria in Las Vegas. Bring the team and save big with our group pricing for a limited time only.

Pre-conference courses and tutorials are filling up fast and are always a sellout. Register today to reserve your seat.

 

Register now!

What is ANOVA?

ANOVA, or Analysis Of Variance, is used to compare the averages or means of two or more populations to better understand how they differ. Watch this tutorial for more.

Find more tutorials on the SAS Users YouTube channel.

Discussion stats
  • 1 reply
  • 1289 views
  • 0 likes
  • 2 in conversation