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Item Pool Maintenance in the Presence of Item Parameter Drift
Author(s) -
Bock R. Darrell,
Murakl Eiji,
Pfeiffenberger Will
Publication year - 1988
Publication title -
journal of educational measurement
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.917
H-Index - 47
eISSN - 1745-3984
pISSN - 0022-0655
DOI - 10.1111/j.1745-3984.1988.tb00308.x
Subject(s) - statistics , differential item functioning , concept drift , econometrics , statistical hypothesis testing , item response theory , curriculum , differential (mechanical device) , psychology , mathematics education , mathematics , computer science , physics , psychometrics , pedagogy , data stream , thermodynamics
Differential linear drift of item location parameters over a 10 ‐year period is demonstrated in data from the College Board Physics Achievement Test. The relative direction of drift is associated with the content of the items and reflects changing emphasis in the physics curricula of American secondary schools. No evidence of drift of discriminating power parameters was found. Statistical procedures for detecting, estimating, and accounting for item parameter drift in item pools for long‐term testing programs are proposed