More on the Computation of Higher-Order Derivatives of the Elementary Symmetric Functions in the Rasch Model.

Liou, Michelle

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Peer reviewed

ERIC Number: EJ495728

Record Type: Journal

Publication Date: 1994

Pages: N/A

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ISSN: ISSN-0146-6216

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More on the Computation of Higher-Order Derivatives of the Elementary Symmetric Functions in the Rasch Model.

Liou, Michelle

Applied Psychological Measurement, v18 n1 p53-62 Mar 1994

A recursive equation is proposed for computing higher order derivatives of elementary symmetric functions in the Rasch model. A simulation study indicates a small loss in accuracy for the proposed formula compared to Gustafsson's sum algorithm (1980) for computing higher order derivatives when tests contain 60 items or less. (SLD)

Descriptors: Algorithms, Computation, Item Response Theory, Simulation, Test Length

Publication Type: Reports - Evaluative; Journal Articles

Education Level: N/A

Audience: N/A

Language: English

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Authoring Institution: N/A

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