This graduate-level textbook is a tutorial for item response theory that covers both the basics of item response theory and the use of R for preparing graphical

Item response theory (IRT) is widely used in education and psychology and is expanding its applications to other social science areas, medical research, and bus

Introduction to measurement -- The one-parameter model -- Joint maximum likelihood parameter estimation -- Marginal maximum likelihood parameter estimation -- T

First thorough treatment of multidimensional item response theory Description of methods is supported by numerous practical examples Describes procedures for mu

In the decade of the 1970s, item response theory became the dominant topic for study by measurement specialists. But, the genesis of item response theory (IRT)