@booklet {1523, title = {Tailored testing, its theory and practice. Part II: Ability and item parameter estimation, multiple ability application, and allied procedures (NPRDC TR-81)}, year = {1981}, note = {Part II: Ability and item parameter estimation, multiple ability application, and allied procedures (NPRDC TR-81)}, address = {San Diego CA: Navy Personnel Research and Development Center}, author = {Urry, V. W.} }