Presentation paper

A large-scale, long-term study of scale drift: The micro view and the macro view


By: Wei He, Xueming (Sylvia) Li, G. Gage Kingsbury


The development of measurement scales for use across years and grades in educational settings provides unique challenges, as instructional approaches, instructional materials, and content standards all change periodically. This study examined the measurement stability of a set of Rasch measurement scales that have been in place for almost 40 years.

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