Specification menu dialog box
This allows entry of most specifications after the analysis, one at a time, in the form of specification=value. Click on "OK" to action the specification and return to the standard screen. "OK and again" to action the specification and redisplay this entry box.
Control variables in the control file or at the "Extra specification" prompts are applied during measure estimation.
Control variables from the pull-down variables only affect the output.
For instance, IDELETE=
In the control file or at the extra specifications prompt: these deleted items do no take part in the measure estimation.
From the "Specification" pull-down menu: these deleted items are not reported, but have taken part in measure estimation, fit statistics, etc.
Most specifications can be entered after the analysis has completed. They do not change the analysis but do alter the output. They are useful for making selections (e.g., PSELECT= and ISELECT=), setting output Table control values (e.g., MRANGE=) and changing user-scaling (e.g., USCALE=10).
"not done" in the Analysis window indicates that
1.a command that should be implemented before estimation (usually by inclusion in the control file) is being done after estimation (usually from the Specification dialog box). For instance, since anchor values (IAFILE=) is implemented before estimation, then UASCALE= (which tells Winsteps the scaling of the anchor values) must also be implemented before estimation.
2.a command has no effect or removes all the data
Multi-line specifications and the Specification pull-down menu:
CFILE= scored category label file: file name only, blank deletes labels
CLFILE= codes label file: file name only, blank deletes labels
IDFILE= item deletion file: file name only: blank resets temporary deletions
ILFILE= item label file: file name only: blank not allowed
PDFILE= person deletion file: file name only: blank resets temporary deletions
So, instead of
1 strongly disagree
4 strongly agree
use the Edit menu, "Create/Edit with Notepad",
then, in Notepad, type
1 strongly disagree
4 strongly agree
save as "clfile.txt"
and in the Specification dialog box, enter:
CLFILE = clfile.txt
Example: We want score Table 20 for items 1-12, 14-20, 31
Specification dialog box: IDELETE=+1-20,13,+31
Output Tables menu: Table 20
These commands add to the effect of previous commands: IDELETE=, PDELETE=, ISELECT=, PSELECT=
Example 1: In the Specification menu dialog box:
PDELETE= ; reinstates everyone who is temporarily deleted
PDELETE= 23 ; temporarily deletes person 23 and reinstates no one
PDELETE= +23 ; temporarily deletes everyone, then reinstates person 23 if temporarily deleted
PDELETE= 23 +23 ; temporarily deletes person 23 then reinstates person 23 and deletes no one
PDELETE= 23 +23 +5 ; temporarily deletes person 23 then reinstates persons 23 and 5 and deletes no one
Example 2: In the Specification menu dialog box:
ISELECT= ; reinstates everyone who is temporarily deselected
ISELECT= A ; deselects everyone whose person label does not start "A" and reinstates no one
ISELECT= ?B ; deselects everyone whose person label does not have "B" in its second column and reinstates no one
ISELECT= A then ISELECT= ?B is the same as ISELECT= AB
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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|
|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|
|April 10-12, 2018, Tues.-Thurs.||Rasch Conference: IOMW, New York, NY, www.iomw.org|
|April 13-17, 2018, Fri.-Tues.||AERA, New York, NY, www.aera.net|
|May 22 - 24, 2018, Tues.-Thur.||EALTA 2018 pre-conference workshop (Introduction to Rasch measurement using WINSTEPS and FACETS, Thomas Eckes & Frank Weiss-Motz), https://ealta2018.testdaf.de|
|May 25 - June 22, 2018, Fri.-Fri.||On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com|
|June 27 - 29, 2018, Wed.-Fri.||Measurement at the Crossroads: History, philosophy and sociology of measurement, Paris, France., https://measurement2018.sciencesconf.org|
|June 29 - July 27, 2018, Fri.-Fri.||On-line workshop: Practical Rasch Measurement - Further Topics (E. Smith, Winsteps), www.statistics.com|
|July 25 - July 27, 2018, Wed.-Fri.||Pacific-Rim Objective Measurement Symposium (PROMS), (Preconference workshops July 23-24, 2018) Fudan University, Shanghai, China "Applying Rasch Measurement in Language Assessment and across the Human Sciences" www.promsociety.org|
|Aug. 10 - Sept. 7, 2018, Fri.-Fri.||On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com|
|Sept. 3 - 6, 2018, Mon.-Thurs.||IMEKO World Congress, Belfast, Northern Ireland www.imeko2018.org|
|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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