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Rasch model

in item response theory, a model in which only one parameter, item difficulty, is specified. This is thought to be a parsimonious way to describe the relation between an item response and an underlying dimension and is thus preferred in some cases. Also called one-parameter model. See two-parameter model; three-parameter model. [proposed in 1960 by Danish statistician Georg Rasch (1901–1980)]

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Psychology term of the day

October 23rd 2024

TTR

TTR

abbreviation for type–token ratio.