The Effects of the Deletion of Misfitting Persons on Vertical Equating via the Rasch Model.

Phillips, S. E.

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Peer reviewed

ERIC Number: EJ335276

Record Type: Journal

Publication Date: 1986

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The Effects of the Deletion of Misfitting Persons on Vertical Equating via the Rasch Model.

Phillips, S. E.

Journal of Educational Measurement, v23 n2 p107-18 Sum 1986

Rasch model equatings of multilevel achievement test data before and after the deletion of misfitting persons were compared. Rasch equatings were also compared with an equating obtained using the equipercentile method. No basis could be found in the results for choosing between the two Rasch equatings. (Author/LMO)

Descriptors: Achievement Tests, Equated Scores, Goodness of Fit, Guessing (Tests), Intermediate Grades, Latent Trait Theory, Mathematical Models, Statistical Studies

Publication Type: Journal Articles; Reports - Research

Education Level: N/A

Audience: N/A

Language: English

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