Example 1: Dichotomous data: Simple control file with data included

A control file, EXAM1.TXT, for an analysis of the Knox Cube Test (see BTD) a test containing 18 items, each item is already scored dichotomously as 0,1. The person-id data begins in column 1 and the item string begins in column 11. No items will be deleted, recoded, or anchored. The number of data lines is counted to determine how many children took the test. use the pull-down "Diagnosis" and "Output Table" menus to see the output tables. For an explanation of the output obtained, see later in the manual. Run this example with:


Control file: EXAM1.TXT

Report output file: (Enter)

Extra specifications: (Enter)


; This file is EXAM1.TXT - (";" starts a comment)

 TITLE='KNOX CUBE TEST'  ; Report title

 NAME1=1                 ; First column of person label in data file

 ITEM1=11                ; First column of responses in data file

 NI=18                   ; Number of items

 CODES=01                ; Valid response codes in the data file

 CLFILE=*                ; Labels the observations

 0 Wrong                 ; 0 in data is "wrong"

 1 Right                 ; 1 in data is "right"

 *                       ; "*" is the end of a list

 PERSON=KID              ; Person title: KID means "child"

 ITEM=TAP                ; Item title: TAP means "tapping pattern"

 &END                    ; Item labels for 18 items follow

1-4                      ; tapping pattern of first item: cube 1 then cube 4 are tapped.

















4-1-3-4-2-1-4            ; last tapping pattern: 7 actions to remember!

END NAMES                ; END NAMES or END LABELS must come at end of list  

Richard M 111111100000000000    ; Here are the 35 person response strings

Tracie  F 111111111100000000

Walter  M 111111111001000000

Blaise  M 111100101000000000

Ron     M 111111111100000000

William M 111111111100000000

Susan   F 111111111111101000

Linda   F 111111111100000000

Kim     F 111111111100000000

Carol   F 111111111110000000

Pete    M 111011111000000000

Brenda  F 111110101100000000

Mike    M 111110011111000000

Zula    F 111111111110000000

Frank   M 111111111111100000

Dorothy F 111111111010000000

Rod     M 111101111100000000

Britton F 111111111100100000

Janet   F 111111111000000000

David   M 111111111100100000

Thomas  M 111111111110100000

Betty   F 111111111111000000

Bert    M 111111111100110000

Rick    M 111111111110100110    ; best performance

Don     M 111011000000000000

Barbara F 111111111100000000

Adam    M 111111100000000000

Audrey  F 111111111010000000

Anne    F 111111001110010000

Lisa    F 111111111000000000

James   M 111111111100000000

Joe     M 111111111110000000

Martha  F 111100100100000000

Elsie   F 111111111101010000

Helen   F 111000000000000000    ; worst performance:  last data line - just stop!

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Rasch Measurement Transactions (free, online) Rasch Measurement research papers (free, online) Probabilistic Models for Some Intelligence and Attainment Tests, Georg Rasch Applying the Rasch Model 3rd. Ed., Bond & Fox Best Test Design, Wright & Stone
Rating Scale Analysis, Wright & Masters Introduction to Rasch Measurement, E. Smith & R. Smith Introduction to Many-Facet Rasch Measurement, Thomas Eckes Invariant Measurement with Raters and Rating Scales: Rasch Models for Rater-Mediated Assessments, George Engelhard, Jr. & Stefanie Wind Statistical Analyses for Language Testers, Rita Green
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