@inbook {1824, title = {Discussion}, year = {1975}, note = {{PDF file, 414 KB}}, address = {D. J. Weiss (Ed.), Computerized adaptive trait measurement: Problems and Prospects (Research Report 75-5), pp. 44-46. Minneapolis: University of Minnesota, Department of Psychology, Psychometric Methods Program.}, author = {Linn, R. L.} }