A WINSTEPS input data file |
Here is the WINSTEPS data file, KCTDAT.txt, used for analyzing the KCT data.
&INST
TITLE='Knox Cube Test (Best Test Design p.31)'
NI=18
ITEM1=11
NAME1=1
TABLES=11111111111111111111111
PERSON=KID
ITEM=TAP
STBIAS=Y
PFILE=KCT.PF
IFILE=KCT.IF
&END
1= 1-4
2= 2-3
|
(and so on down to)
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17=1-4-3-1-2-4
18=4-1-3-4-2-1-4
END NAMES
Richard M 111111100000000000
Tracie F 111111111100000000
|
Elsie F 111111111101010000
Helen F 111000000000000000
Here is the Facform reformatting file, KCTkey.txt:
; File: KCTkey.txt
; This converts a BIGSTEPS file into a Facets file
$Input = KCTDAT.txt
$Output = KCTFDT.txt
$Facets = 2 ; children and item
; labels for the facets
$Flabel = 1, "Children"
$Flabel = 2, "Tapping items"
$If=($L=1)
Control="Yes" ; we are processing BIGSTEPS control
Itemnum=0 ; no items so far
$Endif
$If=(Control="Yes") ; Processing control variables
; let's pick out the title and write it to the Facets specifications
$If = ($S1W5 = "TITLE")
$Text = $S1W50 ; output the Title=
; and let's also output the other specifications that Facets needs:
$Text = "Output = kctOUT.txt ;the Facets output file"
$Text = "Models = ?,?,D"
$Endif
$If = ($S1W4 = "&END")
Control = "Names" ; set to read item names
$Endif
$Else
$If= (Control = "Names")
; now look for the item names
$If=($S1W9="END NAMES")
Control="Data" ; set to read the data
; print a message to the screen for information
$Print= "Processing END NAMES"
$Else
Itemnum = Itemnum + 1 ; increment the item number
$Label = 2, Itemnum, $S4W20 ; save item number and name
$Endif
$Else
; we are now processing the data - the person name is the identifier
$Label = 1, , $S1W9 ; the element name is person id
; reset item numbering
Item = 0
; now go across the line for as many items as there were names
$Do = Itemnum
Item = Item +1
; the ordinal number of this item
$Label = 2,Item
; the item from its position in the data record: Item 1 in column 11.
$Rating = $S(Item+10)W1 ; output the observation
$Again
$Endif
$Endif
The resultant Facets file, KCTFDT.txt, is:
; FACFORM Version No. 1.20, May 4, 1992
; Run on 05-04-1992 12:02:45
; from Keyword file: KCTkey.txt
Facets = 2
TITLE='Knox Cube Test (Best Test Design p.31)'
Output = kctOUT.txt ;the Facets output file
Models = ?,?,D
Labels =
1,Children
1=Adam M ; note: names in alphabetical sequence
2=Anne F
|
35=Zula F
*
2,Tapping items
1= 1-4
|
18=4-1-3-4-2-1-4
*
Data =
26,1-18,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0 ; note: element numbers
|
16,1-18,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
Help for Facform Rasch Measurement Software: www.winsteps.com. Author: John Michael Linacre
Facets Rasch measurement software.
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