Rasch model -- winstep file examples

&INST
Title= "Student scales"
ITEM1 = 25 ; Starting column of item responses
NI = 9 ; Number of items
NAME1 = 1 ; Starting column for person label in data record
NAMLEN = 15 ; Length of person label
XWIDE = 1 ; Matches the widest data value observed
; GROUPS = 0 ; Partial Credit model: in case items have different rating scales
CODES = 1234; matches the data
TOTALSCORE = Yes ; Include extreme responses in reported scores
PFILE=personfile.txt
IFILE=itemfile.txt
; Person Label variables: columns in label: columns in line
&END

<DATA HERE>

 

ANCHORING ITEM PARAMETERS

&INST
Title= "Student scales"
ITEM1 = 34 ; Starting column of item responses
NI = 9 ; Number of items
NAME1 = 1 ; Starting column for person label in data record
NAMLEN = 15 ; Length of person label
XWIDE = 1 ; Matches the widest data value observed
; GROUPS = 0 ; Partial Credit model: in case items have different rating scales
CODES = 1234; matches the data
TOTALSCORE = Yes ; Include extreme responses in reported scores
IAFILE=*
1 .44
2 -1.05
3 2.04
4 .48
5 -.12
6 .32
7 -.98
8 -.57
9 -.56
*
PFILE=personfile_post.txt
IFILE=itemfile_post.txt
; Person Label variables: columns in label: columns in line
&END

<DATA HERE>

 

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