How Creating and Performing Student Responses Were SummarizedCreating and Performing results are not summarized on a standard NAEP IRT scale. To scale assessment results, there must be a sufficient number of students taking a given group of exercises, and a sufficient number of exercises to be scaled of a given type. This was not the case for the Creating and Performing exercises in any of the three arts assessed. Although they consumed far more assessment time than written exercises, there were fewer exercises to group together into a scale. Moreover, given the complex administrative procedures associated with these tasks (such as videotaping responses, distributing arts materials, and having students work in groups), each student took only one such task. This prohibited the use of the kind of scaling methodology used to summarize Responding results. Instead of an IRT scale, Creating and Performing results are presented in terms of an average percent of the maximum possible score.
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