self-tailored testing. Research Memorandum No. 19. Chicago, Illinois: MESA Laboratory, Department of Education, University of Chicago Wright, B. D., & Douglas, G. A. (1977). Best procedures for sample-free item analysis. Applied Psychological Measurement, 1, 281–294. Wright, B. D., & Douglas, G. A. (1977). Conditional versus unconditional procedures for sample-free item analysis. Educational and Psychological Measurement, 37, 47–60. Wright, B. D., & Linacre, J. M. (1989). Observations are always ordinal; measurements, however, must be interval. Archives of Physical Medicine and Rehabilitation, 70(12), 857–867 . Wright, B. D., Linacre, J. M., & Heinemann, A. W. (1993). Measuring functional status in rehabilitation. Physical Medicine and Rehabilitation Clinics of North America, 4(3), 475–491C. V. Granger & G. E. Gresham (Eds.), New developments in functional assessment. Wright, B. D., & Masters, G. N. (1982). Rating scale analysis: Rasch measurement. Chicago, Illinois: MESA Press. Wright, B. D., Mead, R. J., & Bell, S. R. (1980). BICAL: Calibrating items and scales with the Rasch model. Research Memorandum 23C. Statistical Laboratory, Department of Education, The University of Chicago. Wright, B. D., Mead, R. J., & Ludlow, L. H. (1980). KIDMAP: person-by-item interaction mapping. MESA Memorandum #29. Statistical Laboratory, Department of Education, The University of Chicago. . Wright, B. D., & Mok, M. (2000). Understanding Rasch measurement: Rasch models overview. Journal of Applied Measurement, 1(1), 83–106. Wright, B. D., & Panchapakesan, N. (1969). A procedure for sample-free item analysis. Educational and Psychological Measurement, 29(1), 23–48. Wright, B. D., & Stone, M. H. (1979). Best test design: Rasch measurement. Chicago, Illinois: MESA Press. Wright, B. D., & Stone, M. H. (1998). Diseño de mejores pruebas [Spanish translation of Best Test Design] (R. Vidal, Trans.). Mexico City, Mexico: CENEVAL (Original work published 1979). Wright, B. D., & Stone, M. H. (1999). Measurement essentials. Wilmington, DE: Wide Range, Inc. . Wright, B. D., & Stone, M. H. (2004). Making measures. Chicago: Phaneron Press. Wright, B. D., & Yonke, A. M. (1989). American University Studies, Series V: Philosophy. Vol. 82: Hero, villain, saint: An adventure in the experience of individuality. New York: Peter Lang. Notes External links Organizations and discussion lists http://www.rasch.org http://www.raschsig.org https://web.archive.org/web/20110706085804/http://www2.wu-wien.ac.at/marketing/mbc/mbc.html https://mailinglist.acer.edu.au/mailman/listinfo/rasch Software https://web.archive.org/web/20100912092023/http://www.assess.com/xcart/product.php?productid=220 http://www.rummlab.com/ http://www.winsteps.com/ http://bearcenter.berkeley.edu/GradeMap/ Instruments and measuring systems http://www.ampsintl.com/ http://www.lexile.com http://www.devtestservice.org http://www.sportsmeasures.com/index.html American physicists 20th-century American psychologists American statisticians 2015 deaths 1926 births The Hill School alumni Mathematicians from Pennsylvania People from Wilkes-Barre, Pennsylvania Little Red School House alumni Quantitative psychologists