@booklet {1425, title = {Problems in application of latent-trait models to tailored testing (Research Report 79-1)}, year = {1979}, address = {Columbia MO: University of Missouri, Department of Psychology", (also presented at National Council on Measurement in Education, 1979: ERIC No. ED 177 196) note = "}, author = {Koch, W. J. and Reckase, M. D.} }