“…Hambleton (1984a) reviewed methods to determine the test length needed to reduce classification errors. Hambleton reviewed methods making use of the binomial model (Millman, 1972(Millman, , 1973, Bayesian methods (Novick & Lewis, 1974), an "indifference zone" (Wilcox, 1976), computer simulation methods (Eignor & Hambleton, 1979;Hambleton, Mills, & Simon, 1983) and item response theory (Bimbaum, 1968;Lord, 1980). The relationship between test length and estimates of the content domain 3.core is highly relevant to investigations of test content selection.…”