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Peer reviewedKolen, Michael J. – Journal of Educational Measurement, 1981
Two traditional equating schemes and seven item response theory equating schemes were compared. Data used came from the 1978 equating project of the Iowa Tests of Educational Development. The study entailed both the equating of forms of similar difficulty and the equating of levels of differing difficulty. (Arthor/RL)
Descriptors: Comparative Analysis, Equated Scores, High Schools, Latent Trait Theory
