Omitting elements without editing your data

Top Up Down  A A

You want to drop elements 8 and 9 of facet 4 without editing the data. Here are two ways:

 

(a) comment out the item from the Labels= list

Facets=4

Labels=

1, Facet 1

...*

4, Facet 4

1= ...

...

; 8= Element 8  ; commented out

; 9= Element 9

....

*

 

(b) make a "missing data" model with Models=

Facets=4

Models=

?,?,?,8-9,M  ; observations matching items 8 or 9 treated as missing

?,?B,?B,?,R  ; put the model statement for your Facets here.

*


Help for Facets Rasch Measurement Software: www.winsteps.com.