Hola! I am about to do this years buying for our library, and could need help with some references. Some people here will start to work with IRT and Rasch models.>From the book descriptions on Amazon it is difficult to decidewhat books to buy. I want one introductory book on IRT/Rasch, and one more profound, with sufficient detail to actually start coding. Anybody knows some good books satisfying this criteria? Kjetil Halvorsen
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Wisdom of the Ancients
