TRPOFILE= transposing the data matrix
TRPOFILE= file name. This is the name of the transposed file.
This operates in association with TRPOTYPE= control characters. This controls what is written to the transposed file.
TRPOFILE=? opens a Browse window
Example 1: You want to "rack" the data in exam12lo.txt and exam12hi.txt, so that each person record contains the ratings from both files:
1. Analyze exam12.txt with data=exam12lo.txt
Transpose the data file only to exam12lod.txt
The "lo" items are now rows
2. Analyze exam12.txt with data=exam12hi.txt
Transpose the data only to exam12hid.txt
The "hi" items are now rows
Transpose the control file only to exam12tran.txt
The person labels are now shown as item labels
3. Analyze exam12tran.txt with data=exam12lod.txt+exam12hid.txt
The columns are the original persons. The rows are all the original items, "lo" and "hi".
Transpose the control and data file to exam12rack.txt
The persons return to the rows.
The columns are now all the original items, "lo" and "hi".
4. Analyze exam12rack.txt with Winsteps. This is the desired control and data file.
Example 2: We want to see if one group of persons have a different response "style" than another group of persons on a 6-category rating scale. To do this,
1. Transpose the Winsteps control-and-data file so that the rows become columns: Winsteps output file menu: Transpose.
2. In the transposed Winsteps control-and-data file,
GROUPS = 12112111.... to match the person groups.
3. Save the transposed file and analyze it with Winsteps.
4. Look at Table 3.2. There will be one rating scale for Group 1 and another rating scale for Group 2.
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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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