Labels of facets and elements = (required)

This specification names each facet and follows it by a list of the element numbers and labels (names) to be included in the analysis.

 

Labels = (Nobuild)

Facet number ,

Facet label or name,

Anchoring,  (A,D,G,X)
+ No group reporting (N)

Estimation priority

Element number =

Element label or name,

Measure,

starting value, anchor value or group-anchor value

Group number,

for group-reporting or group-anchoring

Element weight,

defaults to 1.0

Target element number for merged elements: observations with the Element number are assigned to the Target element number

*

 

1. Labels =

Facets adds to Output Table 2 a list of the elements in the data that are not specified in Labels=.

These can be copy-and-pasted into your specification file.

Specify Labels=Nobuild to suppress producing the list of unspecified elements.

 

2. Facet Identification

 

2A. Facet numbers

Choose the order you prefer to think about your facets, and number them in that order. The number you assign to each facet will determine the order in which the facets are reported.

If your facets are persons, judges and items, you may choose:

Facet 1: judges

Facet 2: persons

Facet 3: items

 

2B. Facet Anchoring

Choose the order you prefer to think about your facets, and number them in that order. The number you assign to each facet will determine the order in which the facets are reported.

If your facets are persons, judges and items, you may choose:

Facet 1: judges

Facet 2: persons

Facet 3: items

 

Facet

Anchor/Group code

Element Specification

Description

(None)

Element number = (label), (value), Group number

Group number is used for reporting groups of elements in Table 7

A

Element number = (label), Value, (group number)

Element measure is anchored at Value. Groups reported if there is a group number.

D

Element number = (label), (value), (group number)

Element measure is anchored at Umean= value. Groups reported if there is a group number.

G

Element number = (label), Value, Group number

Each element measure is measured independently but the sum of the measures of the group of elements are constrained to equal the sum of their Values.

X

Element number = (label), Value, Group number

The same as G, but elements with extreme scores (zero, perfect) are excluded.

...N

Element number = (label), (value), (group number)

This suppresses group reporting for a facet in Table 7.  Groups are ignored for measure reporting.

Labels=

2=Persons,GN ; group-anchoring wanted, but Table 7 does not report measures for each group separately

1=Ben,0,1 ; Ben is in group 1

2=Mike,0,2 ; Mike is in group 2

......

 

Valid Numerical Ranges

Facets

1 - 255

 

Any number in the range is valid. They do not need to start at 0 or 1, nor do they need to be in sequence.

Elements

Element numbers are in the range 1 - 2,147,438,648

 

Element 0 is usually the null element number, meaning "this facet does not apply to this observation." Element 0 can be used as an element number, provided Null element= is used to change the null element number from 0 to another number.

Group numbers

0-255

0 means "no group"

Observations

0-255 (can be rescored with Rating scale=)

 

2C. Estimation priority - Ignore this for most analyses.

This allows the measures for the elements of some facets to be estimated before the elements of other facets. For instance, facets modeling interaction terms can be estimated after their main effects have been estimated.

Priority 0: do not estimate the measures. This is equivalent to anchoring (A or D).

Priority 1: estimate the measures (the default)

Priority 2: estimate the measures after the Priority 1 measures have been estimated.

Priority 3: estimate after Priority 1 and 2.

Priority 4 and higher: estimate after higher priority measures have been estimated.

 

3. Element Identification

 

See Elements.


Help for Facets 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

State-of-the-art : single-user and site licenses : free student/evaluation versions : download immediately : instructional PDFs : user forum : assistance by email : bugs fixed fast : free update eligibility : backwards compatible : money back if not satisfied
 
Rasch, Winsteps, Facets online Tutorials

 

Forum Rasch Measurement Forum to discuss any Rasch-related topic

 

To receive News Emails about Winsteps and Facets,
enter your email address here:

I want to Subscribe: & click below
I want to Unsubscribe: & click below

Please set your SPAM filter to accept emails from Winsteps.com

 

www.winsteps.com welcomes your comments or questions:

Your email address (if you want us to reply):

 
 

 

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
The HTML to add "Coming Rasch-related Events" to your webpage is:
<script type="text/javascript" src="http://www.rasch.org/events.txt"></script>

 

For more information, contact Winsteps.com by e-mail using the comment form above.
Our current URL is www.winsteps.com

Winsteps® is a registered trademark
 


 

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