IDELETE= item one-line item deletion

A one-line list of items to be deleted or reinstated can be conveniently specified with IDELETE=. ThisIt has the same functionality as IDFILE=. ISELECT= is another way of deleting items.

 

The formats are:

IDELETE= 3

3 is an item entry number: delete item 3

IDELETE= 6 1

delete items 6 and 1

IDELETE= 2-5

delete items 2, 3, 4, 5

IDELETE= +3-10

delete all items, then reinstate items 3 to 10

IDELETE= 4-20 +8

delete items 4-20 then reinstate item 8

IDELETE= 3,7,4,10

delete items 3, 7, 4, 10. Commas, blanks and tabs are separators.

At the "Extra information" prompt, use commas as separators

IDELETE= (blank)

In the Specification Menu dialog box, resets temporary item deletions

 

Example 1: After an analysis is completed, delete all items except for one subtest in order to produce a score-to-measure Table for the subtest.

In the Specifications pull-down box:

 IDELETE = +11-26 ; the subtest is items 11-26

 Screen displays: CURRENTLY REPORTABLE ITEMS = 16

In the Output Tables menu (or SCOREFILE=)

Table 20. Measures for all possible scores on items 11-26.

 

Example 2: 9 common items. 3 items on Form A. 4 items on Form B. Score-to-measure tables for the Forms.

For Form A: in the Specifications pull-down box:

 IDELETE = 13-16 ; deletes Form B items

In the Output Tables menu:

Table 20. Measures for all possible scores on items in Form A.

For Form B: in the Specifications pull-down box:

 IDELETE= ; to reset all deletions

then

 IDELETE = 10-12 ; deletes Form A items

In the Output Tables menu:

Table 20. Measures for all possible scores on items in Form B.


Help for Winsteps Rasch Measurement Software: www.winsteps.com. Author: John Michael Linacre

Just released in June 2017: Winsteps 4.0 with Table 45 Cumulative Plot

New and on-going: Masterchef Australia 2017: Rasch Measurement of Cooks with Table 45

For more information, contact info@winsteps.com or use the comment form below.
 

Facets Rasch measurement software. Buy for $149. & site licenses. Freeware student/evaluation download
Winsteps Rasch measurement software. Buy for $149. & site licenses. Freeware student/evaluation download

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Rasch Publications
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: Using Rasch Models in the Social, Behavioral, and Health Sciences, George Engelhard, Jr. Statistical Analyses for Language Testers, Rita Green
Rasch Models: Foundations, Recent Developments, and Applications, Fischer & Molenaar Journal of Applied Measurement Rasch models for measurement, David Andrich Constructing Measures, Mark Wilson Rasch Analysis in the Human Sciences, Boone, Stave, Yale
in Spanish: Análisis de Rasch para todos, Agustín Tristán Mediciones, Posicionamientos y Diagnósticos Competitivos, Juan Ramón Oreja Rodríguez
Winsteps Tutorials Facets Tutorials Rasch Discussion Groups

 


 

 
Coming Rasch-related Events
July 31 - Aug. 3, 2017, Mon.-Thurs. Joint IMEKO TC1-TC7-TC13 Symposium 2017: Measurement Science challenges in Natural and Social Sciences, Rio de Janeiro, Brazil, imeko-tc7-rio.org.br
Aug. 7-9, 2017, Mon-Wed. In-person workshop and research coloquium: Effect size of family and school indexes in writing competence using TERCE data (C. Pardo, A. Atorressi, Winsteps), Bariloche Argentina. Carlos Pardo, Universidad Catòlica de Colombia
Aug. 7-9, 2017, Mon-Wed. PROMS 2017: Pacific Rim Objective Measurement Symposium, Sabah, Borneo, Malaysia, proms.promsociety.org/2017/
Aug. 10, 2017, Thurs. In-person Winsteps Training Workshop (M. Linacre, Winsteps), Sydney, Australia. www.winsteps.com/sydneyws.htm
Aug. 11 - Sept. 8, 2017, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com
Aug. 18-21, 2017, Fri.-Mon. IACAT 2017: International Association for Computerized Adaptive Testing, Niigata, Japan, iacat.org
Sept. 15-16, 2017, Fri.-Sat. IOMC 2017: International Outcome Measurement Conference, Chicago, jampress.org/iomc2017.htm
Oct. 13 - Nov. 10, 2017, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
Jan. 5 - Feb. 2, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
Jan. 10-16, 2018, Wed.-Tues. In-person workshop: Advanced Course in Rasch Measurement Theory and the application of RUMM2030, Perth, Australia (D. Andrich), Announcement
Jan. 17-19, 2018, Wed.-Fri. Rasch Conference: Seventh International Conference on Probabilistic Models for Measurement, Matilda Bay Club, Perth, Australia, Website
April 13-17, 2018, Fri.-Tues. AERA, New York, NY, www.aera.net
May 25 - June 22, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
June 29 - July 27, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Further Topics (E. Smith, Winsteps), www.statistics.com
Aug. 10 - Sept. 7, 2018, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com
Oct. 12 - Nov. 9, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
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New and on-going: Masterchef Australia 2017: Rasch Measurement of Cooks

 

 
John "Mike" Linacre, author of Winsteps, and Jenny use and recommend eco-friendly, highly effective beauty and wellness products such as skincare