topic T-Test Complex Survey Data in Statistical Procedures

T-Test Complex Survey Data

ED18 — Tue, 05 May 2020 09:17:50 GMT

I am trying to use proc surveyreg to run a t-test for my complex survey data, but I keep getting an error stating " Variable Depression_Indicator in list does not match type prescribed for this list/ No Model Statement"

This is the code I am using

PROC SURVEYREG data=final nomcar;
STRATA sdmvstra;
CLUSTER sdmvpsu;
CLASS riagendr;
WEIGHT MEC4YR;
MODEL DEPRESSION_INDICATOR = riagendr/solution vadjust=none;
run;

Re: T-Test Complex Survey Data

PaigeMiller — Tue, 05 May 2020 10:56:25 GMT

Is DEPRESSION_INDICATOR a character variable? What does PROC CONTENTS say?

To do a t-test, your Y variable must be numeric.

Re: T-Test Complex Survey Data

SAS_Rob — Tue, 05 May 2020 12:25:59 GMT

Given the name of your variable I am assuming that it is a categorical variable. To compare groups for a categorical response with complex survey data you should use Proc SURVEYFREQ instead with one of the Chi-Square tests (e.g. CHISQ option on the TABLES statement.

PROC SURVEYFREQ data=final nomcar;
STRATA sdmvstra;
CLUSTER sdmvpsu;
WEIGHT MEC4YR;
TABLES DEPRESSION_INDICATOR*riagendr/CHISQ;
run;