The Extent, Causes and Importance of Context Effects on Item Parameters for Two Latent Trait Models.

Yen, Wendy M.

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Peer reviewed

ERIC Number: EJ239607

Record Type: Journal

Publication Date: 1980

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The Extent, Causes and Importance of Context Effects on Item Parameters for Two Latent Trait Models.

Yen, Wendy M.

Journal of Educational Measurement, v17 n4 p297-311 Win 1980

A study of the context effects on item parameters for one- and three-parameter latent trait models showed that: (1) changes in context affected their item difficulties; and (2) context effects were more important in making predictions for single items than for groups of items. (Author/RL)

Descriptors: Achievement Tests, Context Effect, Difficulty Level, Grade 4, Grade 6, Intermediate Grades, Item Banks, Latent Trait Theory, Sampling, Test Items

Publication Type: Journal Articles; Reports - Research

Education Level: N/A

Audience: N/A

Language: English

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Identifiers - Assessments and Surveys: California Achievement Tests

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