1. Introduction and history;Wainer,2000
2. Emergence of item response modeling in instrument development and data analysis;Hambleton;Med Care,2000
3. The lower extremity functional scale (LEFS): scale development, measurement properties, and clinical application;Binkley;Phys Ther,1999
4. Statistical theories of mental test scores;Lord,1968
5. Some test theory for tailored testing;Lord,1970