Documentation Example 5 for PROC IRT
/****************************************************************/
/* S A S S A M P L E L I B R A R Y */
/* */
/* NAME: IRTEX5 */
/* TITLE: Documentation Example 5 for PROC IRT */
/* */
/* PRODUCT: STAT */
/* SYSTEM: ALL */
/* KEYS: */
/* PROCS: IRT */
/* DATA: */
/* */
/* SUPPORT: Xinming An */
/* REF: PROC IRT, EXAMPLE 5 */
/* MISC: */
/****************************************************************/
data IrtUni;
input item1-item8 @@;
datalines;
1 0 0 0 1 1 2 1 1 1 1 1 1 3 3 3 0 1 0 0 1 1 1 1 1 0 0 1 0 1 2 3 0 0 0
0 0 1 1 1 1 0 0 1 0 1 3 3 0 0 0 0 0 1 1 3 0 0 1 0 0 1 2 2 0 1 0 0 1 1
1 2 0 0 0 0 0 2 2 3 0 1 0 1 0 2 3 3 0 0 1 0 1 1 2 3 1 1 1 1 1 2 2 3 0
0 0 0 1 1 2 2 1 0 1 1 1 2 3 3 0 1 0 0 1 1 2 3 1 0 1 1 1 2 3 3 0 1 0 1
1 3 2 3 1 1 1 0 0 1 3 3 1 1 0 0 1 2 3 3 0 1 1 1 1 1 2 1 1 0 0 1 1 3 1
1 1 0 0 0 1 1 1 3 0 0 0 0 1 1 3 3 0 0 0 0 0 1 1 1 1 0 0 0 0 1 3 3 1 1
0 1 1 3 1 1 1 0 1 1 1 1 3 1 1 1 1 1 1 2 3 2 0 0 1 0 0 2 2 2 0 0 1 0 1
1 2 3 1 1 1 1 1 1 1 2 0 0 0 0 1 3 1 1 1 1 1 1 1 2 2 3 0 0 0 0 1 2 2 3
1 1 1 1 1 3 3 3 1 1 1 1 1 1 3 3 0 1 0 0 0 2 2 2 0 1 0 1 0 2 2 3 1 0 0
1 1 1 1 2 1 0 0 0 1 3 1 2 0 0 0 0 0 1 3 1 0 1 1 0 0 2 1 3 0 0 0 0 1 2
2 3 0 0 0 0 0 1 1 2 0 0 0 1 1 1 1 1 0 0 0 0 1 3 1 3 0 0 0 0 0 2 1 1 0
0 0 1 1 1 3 2 0 0 0 0 0 2 1 2 1 1 1 0 0 1 3 1 0 0 0 0 1 2 2 2 0 1 1 1
1 2 2 3 0 0 1 0 1 2 2 3 1 0 1 1 1 3 1 1 0 0 0 0 1 1 3 3 1 1 1 0 0 1 3
3 0 0 0 0 0 2 1 1 0 0 0 1 1 2 3 3 0 0 0 0 0 1 2 1 0 0 1 0 1 3 1 1 0 1
0 0 1 1 2 1 0 0 1 0 0 3 1 3 0 0 0 0 0 1 1 1 1 0 0 1 0 1 1 1 0 0 1 1 1
2 1 2 0 0 0 0 0 3 2 2 0 0 0 0 1 2 2 2 0 0 1 1 1 2 2 3 0 0 1 0 0 2 2 3
0 1 1 0 1 2 3 1 1 0 1 1 1 2 2 2 1 1 0 1 1 1 1 1 1 1 0 1 1 2 3 1 0 0 0
0 1 3 1 2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 3 1 3 1 1 1 0 1 1
1 2 0 0 0 1 0 1 1 1 0 0 0 1 1 1 1 2 1 0 1 1 1 1 3 1 1 1 1 1 0 3 3 3 1
1 0 1 0 3 1 3 0 0 0 0 0 1 2 2 0 0 1 0 1 2 2 2 0 1 1 1 0 2 2 3 0 0 0 0
1 3 1 3 1 1 1 1 1 3 2 2 1 0 1 1 1 1 1 3 0 0 1 0 1 2 1 2 0 0 1 1 1 2 1
2 1 1 1 1 1 3 2 3 0 0 0 1 1 1 1 1 1 0 0 1 1 1 2 2 1 0 1 0 1 1 3 3 0 0
0 0 0 2 1 1 1 0 1 0 1 1 1 3 0 0 0 0 0 3 1 1 0 1 1 0 0 1 2 2 1 0 1 1 1
3 3 3 1 1 0 1 0 1 2 2 1 0 0 0 0 1 1 1 0 0 0 0 0 3 2 2 0 0 0 1 1 3 3 3
0 0 0 0 1 2 2 2 0 0 0 0 1 2 2 2 0 0 0 0 0 2 1 2 0 0 1 1 1 3 3 3 1 1 1
0 1 1 2 2 0 0 0 0 1 2 3 3 0 0 1 0 1 2 3 3 1 1 1 0 1 2 3 3 1 0 0 0 1 1
3 2 1 0 0 0 1 2 2 1 0 1 0 1 0 1 3 1 0 0 0 0 0 1 1 1 0 1 0 0 0 3 2 1 0
0 0 1 0 2 1 1 1 1 0 0 1 3 3 1 1 1 1 1 1 3 2 1 1 0 1 0 1 3 2 3 1 1 1 0
1 2 2 2 1 1 0 1 1 2 3 3 0 0 0 1 0 1 1 1 1 0 1 1 1 2 3 3 0 0 0 1 1 2 3
1 1 1 0 1 1 3 1 2 0 0 0 1 1 1 2 1 1 1 1 0 1 1 1 2 1 1 1 1 1 2 3 3 0 0
1 1 0 2 2 1 1 0 0 0 1 3 1 2 0 1 1 1 1 1 2 1 0 0 0 0 1 3 3 2 0 0 0 1 0
1 1 1 0 0 0 0 0 1 3 3 0 0 0 1 1 1 1 2 0 1 0 0 1 3 1 1 0 0 1 0 0 1 2 2
0 0 0 0 1 2 2 2 1 0 1 1 0 3 2 1 0 0 0 0 1 3 2 3 0 1 1 1 0 2 2 3 1 0 0
1 0 3 2 3 0 1 0 0 1 2 2 3 0 0 0 0 0 2 1 1 0 0 0 0 1 3 2 2 0 0 0 1 1 1
3 1 0 0 0 1 1 2 1 1 1 1 1 1 1 3 3 2 0 0 1 1 1 1 2 2 0 1 1 0 0 1 3 1 1
0 0 1 1 2 3 3 1 1 1 1 1 3 2 3 1 0 1 0 1 1 3 3 1 1 1 1 0 3 2 3 0 1 1 0
1 1 2 3 1 1 1 0 1 1 3 2 0 0 0 1 0 1 2 1 0 0 0 0 0 1 1 1 1 1 1 1 1 2 3
3 1 1 1 0 1 2 3 3 1 1 1 1 1 2 2 3 0 0 0 0 1 2 2 2 0 0 0 0 1 2 2 2 0 0
1 0 1 2 1 2 1 1 0 1 1 3 2 3 0 0 1 0 0 1 2 3 0 0 1 0 0 1 2 2 1 0 0 0 0
1 2 2 1 0 0 1 0 2 2 2 0 0 1 1 1 2 1 3 0 0 0 0 0 1 1 1 0 0 0 0 1 1 1 1
0 0 0 1 1 1 3 3 0 0 0 0 0 1 2 3 0 0 0 0 0 2 2 2 1 0 1 0 1 3 1 3 0 1 1
0 1 1 3 2 0 0 0 1 1 2 1 2 0 0 0 0 0 3 1 1 0 0 0 0 1 1 1 1 0 1 1 1 0 1
3 3 1 0 0 1 1 3 3 3 0 0 0 0 0 1 1 2 1 0 1 1 1 2 3 3 0 0 0 0 1 1 1 1 1
1 1 1 1 3 3 3 1 0 0 0 1 3 1 3 0 0 0 0 1 1 1 1 0 0 0 1 1 1 2 2 0 0 0 0
0 2 1 1 0 0 0 1 0 2 2 3 1 0 0 0 0 2 2 2 0 0 0 1 1 1 1 3 0 1 1 0 0 3 2
3 0 0 0 0 1 2 2 2 1 1 1 1 1 2 2 3 0 0 0 1 1 1 3 3 1 0 1 0 1 3 2 3 0 0
0 0 0 2 2 2 1 0 0 1 1 1 2 3 0 0 0 0 1 2 2 2 1 1 0 1 0 3 3 1 0 0 0 0 1
3 3 2 1 0 0 0 0 2 2 2 0 0 1 0 1 1 3 2 1 0 1 0 1 1 3 3 0 1 0 0 1 1 2 1
0 0 0 0 1 2 2 2 1 1 1 0 1 2 3 3 1 1 1 1 1 1 2 3 0 0 0 0 0 1 2 2 0 1 0
0 1 3 3 3 1 1 1 1 1 3 1 3 1 1 1 1 0 1 2 3 0 0 0 0 1 1 2 3 1 0 0 1 1 3
3 3 0 1 1 1 0 3 2 3 0 0 0 0 1 1 3 3 0 0 0 0 0 1 1 3 0 0 0 1 0 1 1 2 1
1 1 1 0 2 3 3 1 1 1 1 1 2 2 2 1 1 1 0 1 2 3 3 0 1 0 0 0 3 3 2 0 0 0 0
0 1 1 1 1 1 1 1 1 2 3 3 1 1 1 1 0 1 3 2 0 0 0 1 1 1 1 3 0 0 1 0 0 1 1
1 1 0 1 1 0 1 1 3 0 0 0 0 0 2 2 2 1 1 0 0 1 1 3 3 1 1 0 0 1 2 3 3 1 1
0 1 1 1 3 1 0 0 1 1 0 2 1 2 1 1 1 1 1 1 2 3 0 0 0 0 1 1 1 1 1 1 0 0 1
3 3 3 1 1 1 1 1 3 3 1 0 1 0 0 1 1 2 2 0 0 0 0 1 1 1 1 1 0 0 0 1 2 3 2
1 0 1 0 1 2 3 3 0 0 0 0 0 3 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 3 3 1 0 1 1
0 1 1 2 3 0 0 0 0 0 3 1 2 1 0 0 0 0 1 1 1 1 0 0 1 0 2 1 1 0 0 0 0 0 1
1 1 0 0 1 1 1 2 2 3 0 0 1 0 0 1 2 3 0 0 0 0 1 2 2 1 1 1 1 1 1 3 3 3 0
1 0 0 0 3 2 3 1 1 0 0 1 3 3 3 1 1 1 0 1 2 3 3 0 1 1 0 0 2 3 3 1 0 1 0
1 1 2 3 1 0 0 0 0 2 3 2 0 0 0 0 1 3 2 3 1 1 1 1 0 3 3 3 0 0 0 1 1 2 3
3 0 0 0 1 0 2 3 2 1 1 0 0 1 3 3 1 0 1 0 0 1 2 1 2 1 1 1 0 1 2 2 2 1 0
0 0 1 2 2 2 1 1 1 1 1 3 3 3 0 1 1 0 1 2 2 2 1 1 1 1 1 3 3 3 1 1 1 1 1
3 3 2 1 0 0 0 1 3 3 2 0 0 0 0 0 1 1 1 0 0 0 0 0 2 2 1 0 0 0 0 1 1 3 3
0 0 0 1 1 1 3 1 0 0 1 0 1 1 2 3 1 1 1 1 0 1 2 1 0 1 0 1 0 1 1 1 0 0 1
1 1 1 3 3 1 1 1 1 1 3 1 2 1 1 1 0 0 1 3 3 0 0 1 1 1 1 2 2 1 1 1 1 1 2
3 3 1 1 1 1 1 1 1 2 0 0 0 1 1 1 3 2 0 0 0 0 0 1 1 1 0 0 0 0 0 2 2 3 1
1 1 0 1 2 3 3 0 0 0 0 0 1 1 1 0 0 0 0 0 1 1 1 0 0 0 1 0 1 2 3 0 0 0 0
0 1 2 3 0 0 1 1 1 1 2 3 1 1 1 1 1 2 3 3 0 0 0 0 1 3 3 2 0 0 0 0 1 2 2
2 0 0 0 0 1 2 3 2 1 0 1 1 1 2 3 2 0 0 0 0 1 1 3 1 0 0 0 1 0 2 1 2 0 0
1 0 0 1 2 2 1 0 0 1 1 1 3 2 1 0 0 0 1 3 1 3 0 1 1 1 1 3 3 2 1 1 1 0 0
2 2 2 0 0 0 1 1 2 2 3 1 1 0 1 1 2 3 2 1 1 1 1 1 2 3 3 0 0 0 0 0 3 1 1
1 1 0 0 1 1 3 3 0 0 0 1 1 2 2 3 0 0 0 1 0 1 3 3 1 0 1 1 0 2 3 3 1 0 0
1 1 3 3 3 0 1 1 0 1 1 1 2 0 0 0 0 0 2 3 2 0 1 0 0 0 2 3 2 0 0 0 0 1 1
3 3 1 0 1 1 1 1 3 3 0 1 0 1 1 3 3 3 0 0 0 0 0 1 1 1 0 0 0 1 0 1 1 1 0
1 1 0 1 3 2 3 0 0 0 0 1 3 3 3 0 0 1 0 1 2 3 3 1 1 1 0 0 1 1 2 0 0 1 0
0 2 1 1 0 0 0 0 0 1 1 2 0 0 1 0 0 2 2 1 0 0 0 1 1 1 3 2 0 0 0 1 1 1 2
1 0 0 1 0 1 2 3 2 0 1 0 1 1 1 3 3 0 0 0 0 1 2 2 2 1 1 1 0 1 1 2 3 0 0
0 0 1 1 1 1 0 0 0 0 0 1 1 1 1 0 0 1 1 3 1 2 0 0 0 0 0 1 1 2 1 0 0 1 0
3 2 2 0 0 1 0 1 3 2 3 1 0 0 1 0 1 1 1 0 0 1 0 1 1 1 1 0 0 1 0 0 1 2 2
1 1 1 0 1 3 1 1 0 0 0 0 0 3 1 3 1 0 0 0 1 3 1 2 1 0 0 0 1 3 1 3 0 0 0
0 1 1 1 2 0 0 0 1 1 1 3 3 1 1 1 0 1 2 3 3 0 0 1 0 0 2 2 2 0 1 0 0 1 1
3 2 0 0 0 1 1 1 1 1 1 1 0 1 0 2 3 3 0 0 0 1 1 1 2 1 0 0 0 0 1 1 3 3 1
0 1 0 1 1 3 1 0 0 0 0 1 1 1 3 1 1 1 1 1 2 3 3 1 0 0 0 0 1 3 2 1 0 1 0
1 1 1 3 0 0 0 1 0 2 2 3 1 1 0 0 1 1 3 3 0 0 0 0 1 1 3 2 1 0 0 0 0 1 1
3 1 1 0 1 0 3 1 2 0 0 0 0 0 1 1 1 0 0 0 0 0 3 2 2 0 0 0 1 1 3 3 2 1 0
1 1 1 3 1 3 1 0 0 1 1 1 3 3 1 1 0 0 1 2 3 3 1 1 1 0 1 2 2 3 0 0 1 0 1
1 1 2 0 0 0 0 0 3 1 1 1 1 1 1 1 3 3 3 0 0 0 0 0 1 1 1 1 1 0 0 0 1 1 2
0 0 0 0 0 2 1 2 1 0 0 0 0 1 1 1 1 1 1 0 1 2 2 3 1 0 0 0 1 3 3 2 0 0 0
0 1 1 2 2 0 0 0 1 1 1 3 1 0 1 0 0 1 1 1 2 0 0 0 0 0 2 2 2 1 0 0 0 1 2
2 2 1 0 0 1 1 3 3 2 0 0 0 0 1 2 1 1 1 0 0 0 0 1 1 1 1 1 0 1 1 3 3 2 1
0 0 1 1 3 1 1 0 0 0 0 1 3 1 1 1 1 1 1 1 3 3 3 0 0 0 1 1 2 3 2 0 0 0 0
0 2 1 1 1 0 0 0 1 1 3 3 1 1 1 0 1 2 3 2 1 1 1 0 0 1 1 3 1 1 1 0 1 3 2
3 1 0 1 1 1 2 1 1 1 0 0 1 1 3 2 3 0 0 0 1 1 2 3 2 1 1 0 1 1 1 3 3 0 0
0 0 0 1 3 3 0 0 0 0 0 1 1 1 0 1 1 0 0 2 2 3 0 1 0 1 1 3 3 3 1 0 1 1 0
3 3 2 1 1 0 0 1 3 1 3 0 1 0 1 0 3 2 2 0 1 1 0 1 2 2 2 0 0 0 0 0 1 1 1
0 0 0 0 0 3 1 1 1 0 0 1 0 2 3 3 0 0 0 0 0 1 2 3 1 1 1 1 1 1 2 3 0 1 0
0 0 2 1 1 0 0 0 0 0 1 1 1 0 0 0 0 1 3 1 1 1 1 1 1 1 3 3 3 1 1 0 1 1 1
3 3 1 1 1 0 0 2 2 2 1 0 1 1 1 1 2 3 1 1 1 1 1 3 3 3 1 0 0 0 0 3 3 3 1
1 0 0 1 1 3 3 0 1 0 0 0 2 2 1 0 1 1 0 0 3 2 3 1 0 0 0 0 2 1 3 0 0 0 0
0 1 1 1 0 0 0 0 0 1 2 1 1 1 0 1 1 3 3 3 0 0 0 1 1 3 2 3 0 0 0 1 0 2 3
2 0 0 0 0 0 1 1 2 1 0 1 1 0 3 2 2 0 1 0 0 1 2 3 3 0 0 0 0 0 2 3 3 0 1
0 0 0 1 2 3 1 1 0 1 0 2 3 3 1 1 1 0 1 3 3 3 0 0 0 0 1 1 1 1 1 1 1 0 1
1 1 2 1 0 0 1 1 2 3 3 0 0 1 1 1 1 3 1 0 0 1 1 1 3 3 3 0 0 1 0 1 2 2 2
0 0 0 0 1 3 1 3 0 0 1 0 1 3 2 2 0 0 1 1 1 2 3 3 0 0 0 0 1 3 3 3 1 0 0
0 1 1 1 3 0 0 0 1 1 1 3 3 1 1 1 1 0 3 1 3 1 1 1 1 0 2 1 3 1 0 0 0 0 2
1 2 0 0 0 0 1 1 3 1 0 0 1 0 0 3 2 1 0 0 0 0 1 1 3 3 0 0 0 0 1 2 2 2 1
0 0 0 0 1 1 3 1 0 1 1 1 2 2 3 1 0 1 1 1 2 3 3 0 0 1 0 1 2 2 3 1 0 0 0
1 1 1 2 0 0 0 0 1 1 2 2 1 1 1 0 1 2 2 3 0 0 0 1 0 2 2 1 1 0 1 0 1 3 2
3 1 1 0 1 0 2 3 2 1 0 0 1 1 2 2 3 1 0 1 0 1 3 3 3 0 0 0 0 1 1 1 2 0 0
0 0 1 1 2 3 1 1 1 1 0 2 3 3 0 1 1 0 1 2 3 2 0 0 1 0 1 1 1 2 1 1 1 0 0
2 3 3 0 1 1 1 1 3 3 1 0 0 0 1 0 1 3 2 0 0 0 0 1 1 2 2 1 0 1 0 1 2 2 3
1 0 0 1 1 1 2 2 0 1 0 1 0 1 3 1 0 1 1 0 1 3 3 3 1 0 1 0 0 1 2 1 1 0 1
1 0 1 3 3 1 1 0 1 0 2 2 2 1 1 0 1 1 3 2 3 0 0 0 1 0 2 2 3 0 0 0 1 0 2
3 3 0 1 0 0 1 2 2 1
;
proc irt data=IrtUni out=IrtScore;
var item1-item8;
run;
proc print data=IrtScore(obs=5);
run;
proc surveyselect data = IrtUni method = SRS rep = 1
sampsize = 500 seed = 12345 out = CalData;
id _all_;
run;
proc irt data=CalData outmodel=IrtModel;
var item1-item8;
run;
proc surveyselect data = IrtUni method = SRS rep = 1
sampsize = 50 seed = 54321 out = NewSub;
id _all_;
run;
proc irt data=NewSub inmodel(score)=IrtModel out=IrtScore2;
run;
proc print data=IrtScore2 (obs=5);
run;