Maximum size limitations on specifications and data |
This is for 32-bit Facets 3.87. Here is Help for 64-bit Facets 4
The Facets software program will operate with a minimum of 1 facet, 1 element and two observations per element. For statistically stable measures to be estimated, 30 observations per element are needed: www.rasch.org/rmt/rmt74m.htm
Size Limitations on Specifications and Data |
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Component |
Maximum number |
Limit |
Notes |
Responses in file |
2,147,438,646 tested to 250,000,000 |
D |
|
Ordinal response categories in a rating scale |
255 |
F |
Models= or Rating scale=, per rating scale |
Facets |
255 tested to 60 |
F |
|
Elements |
Element numbers must be in range 0 - 2,147,438,646 Maximum number of elements across all facets is 4,000,000 |
D |
Labels=, numbered up to 2,147,483,646 |
Element label length |
32,000 |
F |
|
Element groups |
32,766 |
F |
Labels=, per facet |
Model statements |
32,767 |
F |
|
Rating scales or other ordinal response scales |
32,767 |
F |
Models= or Rating scale=, includes scales generated by models with "#" |
Bias terms |
2,147,438,646 |
D |
Models=, per model statement |
Table arrangements |
255 |
F |
|
Element measure range |
16 logits |
P |
Estimation can go higher, useful up to 44 logits range |
Line length in specification or data file |
64,000 or 32,000 |
F D |
|
D = limited by available disk and memory space F = Fixed upper limit P = limited by arithmetic precision. |
Help for Facets Rasch Measurement and Rasch Analysis Software: www.winsteps.com Author: John Michael Linacre.
Facets Rasch measurement software.
Buy for $149. & site licenses.
Freeware student/evaluation Minifac download Winsteps Rasch measurement software. Buy for $149. & site licenses. Freeware student/evaluation Ministep download |
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Forum: | Rasch Measurement Forum to discuss any Rasch-related topic |
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Questions, Suggestions? Want to update Winsteps or Facets? Please email Mike Linacre, author of Winsteps mike@winsteps.com |
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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 |
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Coming Rasch-related Events | |
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May 17 - June 21, 2024, Fri.-Fri. | On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com |
June 12 - 14, 2024, Wed.-Fri. | 1st Scandinavian Applied Measurement Conference, Kristianstad University, Kristianstad, Sweden http://www.hkr.se/samc2024 |
June 21 - July 19, 2024, Fri.-Fri. | On-line workshop: Rasch Measurement - Further Topics (E. Smith, Winsteps), www.statistics.com |
Aug. 5 - Aug. 6, 2024, Fri.-Fri. | 2024 Inaugural Conference of the Society for the Study of Measurement (Berkeley, CA), Call for Proposals |
Aug. 9 - Sept. 6, 2024, Fri.-Fri. | On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com |
Oct. 4 - Nov. 8, 2024, Fri.-Fri. | On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com |
Jan. 17 - Feb. 21, 2025, Fri.-Fri. | On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com |
May 16 - June 20, 2025, Fri.-Fri. | On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com |
June 20 - July 18, 2025, Fri.-Fri. | On-line workshop: Rasch Measurement - Further Topics (E. Smith, Facets), www.statistics.com |
Oct. 3 - Nov. 7, 2025, Fri.-Fri. | On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com |
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