Example 4: Selective item recoding
The test has 18 items, specified in file EXAM4.TXT. The response string starts in column 1. Person-id's start in column 41. Original codes are 0,1 in data file EXAM4DAT.TXT. Items 2, 3, and 4 are to be recoded as 1,0. All tables are to appear in report file EXAM4OUT.TXT, in a standardized form.
TITLE="An example of selective item recoding" ; page title
NI=18 ; 18 items
ITEM1=1 ; item responses start in column 1
NAME1=41 ; person-id starts in column 41
NAMLEN=9 ; person-id has 9 characters: Richard M
PSELECT= ????????M ; select M in position 9 of person name
NAMLMP=7 ; 7 characters to appear on maps: "Richard"
CODES=01 ; the observed response codes
CLFILE=* ; the code label list
0 Incorrect ; the observed response codes
* ; end of list
IREFER=ABBBAAAAAAAAAAAAAA ; can be letters or numbers
IVALUEA=01 ; A-type items keep original scoring (this line can be omitted)
IVALUEB=10 ; B-type items have reverse scoring
DATA=EXAM4DAT.TXT ; name of data file
MRANGE=5 ; plots and maps have half-range of 5 logits
LINELENGTH=0 ; allow maximum line length
MAXPAGE=0 ; no maximum page length
TABLES=1111111111111111111111111111111111 ; output all Tables to the Output file
R2-3 ; R reminds us item coding was reversed
The data file, EXAM4DAT.TXT, is
100011100000000000 Richard M
100011111100000000 Tracie F
100100000000000000 Helen F
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