TY - ABST T1 - Problems in application of latent-trait models to tailored testing (Research Report 79-1) Y1 - 1979 A1 - Koch, W. J. A1 - Reckase, M. D. CY - Columbia MO: University of Missouri, Department of Psychology", (also presented at National Council on Measurement in Education, 1979: ERIC No. ED 177 196) note = " ER -