A two-facet flat data file

Here is the data for the Knox Cube Test (KCT) from "Best Test Design" (Wright & Stone, 1978). The first 2 columns are the child number. The scored responses on the 18 items (1=correct, 0=incorrect) are in columns 4-21. There are 35 children altogether. These data are in file "KCTFDAT.txt":


1  111111100000000000   child 1, 18 dichotomous 0-1 responses

2  111111111100000000


(and so on down to)


34 111111111101010000

35 111000000000000000   Child 35

^  ^

1  4  Columns


The keyword list (in file KCTFkey.txt, in the facform folder) converts the flat file into a Facets file:


; File: KCTFkey.txt   comment for your information

; This converts a flat data file into a Facets file (Comments start with ;)


$Input = KCTFDAT.txt  ; the flat file

$Output = KCTFFAC.txt ; the file of Facets-formatted data


$Facets = 2 ; two facets - children and tapping items


; labels for the facets

$Flabel = 1, "Children"

$Flabel = 2, "Tapping items"


; let's output the specifications that Facets needs:

$Spec = "Title = Knox Cube Test"   these are explained in the Facets manual

$Spec = "Output = kctOUT.txt ;the Facets output file"

$Spec = "Models =?,?,D"


; person element number is child number in the flat file:

$Label = 1, $S1W2 ; Child number is column 1 of data, width 2


; reset item numbering

Itemnum = 1 ; define variable Itemnum with value 1. This will be the item number.


; now go across the line for 18 items

$Do = 18

$Label = 2, Itemnum    ; Itemnum has the item number

; at this point the current element in facet 1 and in facet 2 have been

; identified by $Label= keywords

$Rating = $S(Itemnum+3)W1 ; first response: column 4 width 1.

; The reformatted rating is written to the $Output file.

Itemnum = Itemnum + 1   ; increment for next response



After running the following at the DOS prompt:



The Facets-format output file is KCTFFAC.txt:


; FACFORM Version No. 1.20, May 3, 1992

; Run on 05-03-1992 21:56:09

; from Keyword file: KCTFLATkey.txt

Facets = 2

Title = Knox Cube Test

Output = kctOUT.txt ;the Facets output file

Models =?,?,D

Labels =




| (31 more children numbers here)




2,Tapping items







Data =

1,1-18,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0   child 1, items 1-18, 18 responses



(and so on down to)




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