Under Current measure: enter two measures from your current analysis.

Under Desired measure: enter the values with which you want them to be reported.

Under Decimals: enter the number of decimal places for the measure Tables, Udecimals=.

Press Compute New to calculate the revised values of Uimean= and Uscale=.

The current values of Uimean= and Uscale= are displayed and also the revised New values. The New values can be altered if you wish.

Press Specify New to action the New values. Or the values can be copied (Ctrl+c) and pasted into your Winsteps control file.

Example: We want the mean and S.D. of our sample to be 0 and 1.

Current Table 3.1

---------------------------------------

|           RAW

|          SCORE     COUNT     MEASURE

|--------------------------------------

| MEAN      31.7      25.0         .97

| S.D.       8.7        .0        1.35

The current mean = .97

The current mean + 1 S.D. = .97 +1.35

The desired mean = 0

The desired mean + 1 S.D. = 0+1

New Table 3.1

---------------------------------------

|           RAW

|          SCORE     COUNT     MEASURE

|--------------------------------------

| MEAN      31.7      25.0         .00

| S.D.       8.7        .0        1.00

Example: If I use IAFILE= and SAFILE= for some items, how do I rescale the analysis to set the reported person measure range as 0-100?

1. Do your analysis with IAFILE= and SAFILE=. USCALE= in this analysis is the value of USCALE= in the analysis that output the SAFILE=

2. Output Tables menu: Table 20.1. Identify the measure you want tobe 0, and the measure you want to be 100

"Current Measure:" are the two measures from Table 20.1
"Desired Measure:" are the two measures you want
Click on "Compute New:" write down the value of Uscale= for your next analysis
Click on "Specifiy New"

4. Output Tables menu: Table 20.1. The range should be 0-100.

5. Output IFILE=if.txt, SFILE=sf.txt

6. Do the analysis again: IAFILE=if.txt, SAFILE=sf.txt and USCALE= the value of Uscale= from 3.

7. Output Tables menu: Table 20.1. The range should be 0-100.

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

 Forum Rasch Measurement Forum to discuss any Rasch-related topic

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 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
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
Jan. 22-24, 2018, Mon-Wed. In-person workshop: Rasch Measurement for Everybody en español (A. Tristan, Winsteps), San Luis Potosi, Mexico. www.ieia.com.mx
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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