/****************************************************************/ /* 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 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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;