OSORT= category/option/distractor sort = S, score value order

Specifies the order in which categories, options and distractors are listed within items in the Item Category/Option/Distractor Tables, such as Table 13.3

 

OSORT = D  Options within items are listed in their Data order in CODES= (the standard).

OSORT = S or V or " " Score or Value: Options are listed in their Score Value order.

OSORT = A or M Average or Measure: Options are listed in their Average Measure order.

 

Example: List distractors in original CODES= order:

 OSORT=D

 CODES=000102

 XWIDE=2

 

         ACTS CATEGORY/OPTION/Distractor FREQUENCIES:  MISFIT ORDER

+-----------------------------------------------------------------------------+

|ENTRY   DATA  SCORE |     DATA   | AVERAGE  S.E.  OUTF|                      |

|NUMBER  CODE  VALUE |  COUNT   % | MEASURE  MEAN  MNSQ| ACT                  |

|--------------------+------------+--------------------+----------------------|

|   23 A 00        0 |     44  59 |    9.57  1.37  1.7 |WATCH A RAT           | 00 dislike

|        01        1 |     20  27 |   10.35  3.79  2.4 |                      | 01 neutral

|        02        2 |     11  15 |    8.92  6.48  7.6 |                      | 02 like

|        MISSING *** |      1   1 |                    |                      |

|                    |            |                    |                      |

|    5 B 00        0 |     47  63 |    9.57  1.48  1.8 |FIND BOTTLES AND CANS | 00 dislike

|        01        1 |     19  25 |    8.34  3.45  2.9 |                      | 01 neutral

|        02        2 |      9  12 |   13.14  8.10  6.1 |                      | 02 like


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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
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Coming Rasch-related Events
Sept. 4 - Oct. 16, 2015, Fri.-Fri. On-line workshop: Rasch Applications, Part 1: How to Construct a Rasch Scale (W. Fisher), www.statistics.com
Sept. 9-11, 2015, Wed.-Fri. In-person workshop: Introductory Rasch (A. Tennant, RUMM), Leeds, UK, www.leeds.ac.uk/medicine/rehabmed/psychometric
Sept. 14-16, 2015, Mon.-Wed. IACAT Conference: International Association of Computerized Adaptive Testing, Cambridge, UK, iacat.org
Sept. 14-16, 2015, Mon.-Wed. In-person workshop: Intermediate Rasch (A. Tennant, RUMM), Leeds, UK, www.leeds.ac.uk/medicine/rehabmed/psychometric
Sept. 17-18, 2015, Thur.-Fri. In-person workshop: Advanced Rasch (A. Tennant, RUMM), Leeds, UK, www.leeds.ac.uk/medicine/rehabmed/psychometric
Sept. 30 - Oct. 2, 2015, Wed.-Fri. In-person workshop: IRT and Rasch analyses using R and Concerto (C. Gibbons), Cambridge, UK, www.psychometrics.cam.ac.uk
Oct. 16 - Nov. 13, 2015, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
Oct. 23 - Nov. 20, 2015, Fri.-Fri. On-line workshop: Rasch Applications, Part 2: Clinical Assessment, Survey Research, and Educational Measurement (W. Fisher), www.statistics.com
Nov. 13, 2015, Fri. In-person workshop: Rasch Models in Business Administration, in Homage to Professor Pedro Álvarez-Martínez, Tenerife, Canary Islands, www.institutos.ull.es
Dec. 2-4, 2015, Wed.-Fri. In-person workshop: Introductory Rasch (A. Tennant, RUMM), Leeds, UK, www.leeds.ac.uk/medicine/rehabmed/psychometric
March 18, 2016, Fri. UK Rasch User Group Meeting, Durham, UK, www.rasch.org.uk
March 23-24, 2016, Wed.-Thur. In-person workshop: Introduction to Rasch using Winsteps (W.Boone), Cincinnati OH, raschmeasurementanalysis.com
April 8-12, 2016, Fri.-Tues. AERA Annual Meeting, Washington DC, www.aera.net
Aug. 12 - Sept. 9, 2016, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com
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