Graded Response Model

  • Fumiko Samejima


The graded response model represents a family of mathematical models that deals with ordered polytomous categories. These ordered categories include rating such as letter grading, A, B, C, D, and F, used in the evaluation of students’ performance; strongly disagree, disagree, agree, and strongly agree, used in attitude surveys; or partial credit given in accordance with an examinee’s degree of attainment in solving a problem.


Latent Trait Item Parameter Homogeneous Case Partial Credit Grade Response Model 
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© Springer Science+Business Media New York 1997

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  • Fumiko Samejima

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