@booklet {1335, title = {Feasibility studies of two-stage testing in large-scale educational assessment: Implications for NAEP}, year = {1998}, address = {American Institutes for Research, CA}, author = {Bock, R. D. and Zimowski, M. F.} } @booklet {1589, title = {Full-information item factor analysis from the ASVAB CAT item pool (Methodology Research Center Report 87-1)}, year = {1987}, address = {Chicago IL: University of Chicago}, author = {Zimowski, M. F. and Bock, R. D.} }