Institute for Objective Measurement, Inc.
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Welcome to the website of the IOM! We offer you information on a wide variety of measurement programs and services. Please click below on as many selections as you would like.
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| Publisher PDF (181MB) | Publisher PDF (198MB) | |
| Standard PDF (81MB) | Standard PDF (81MB) | Standard PDF (10MB) |
| Reduced PDF (26MB) | Reduced PDF (26MB) | |
| Best Test Design B. D. Wright & M. H. Stone Complete Text |
Rating Scale Analysis B. D. Wright & G. N. Masters Complete Text |
Making Measures B. D. Wright & M. H. Stone Complete Text |
| FORUM | Rasch Measurement Forum to discuss any Rasch-related topic |
| Coming Rasch-related Events | |
|---|---|
| May. 15 - June 12, 2026, Fri.-Fri. | On-line workshop: Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com |
| June 19 - July 25, 2026, Fri.-Sat. | On-line workshop: Rasch Measurement - Further Topics (E. Smith, Winsteps), www.statistics.com |
| Aug. 31 - Sept 2 2026, Mon.-Wed. | In person: IMEKO TC1 Metrology Education and Training symposium, Klagenfurt, Austria www.photomet-edumet2026.com. Submissions by April 20 |
| Aug. 30 - Sept. 3, 2027, Mon.-Fri. | In Person: 2027 IMEKO World Congress (TC1, Tc7, TC13, TC18, TC26), Rimini, Italy imeko2027.org |