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Patz, Richard J.; Wilson, Mark; Hoskens, Machteld – 1997
The National Assessment of Educational Progress (NAEP) collects data in the form of repeated, discrete measures (test items) with hierarchical structure for both measures and subjects, that is complex by any standard. This complexity has been managed through a "divide and conquer" approach of isolating and evaluating sources of…
Descriptors: Data Analysis, Data Collection, Elementary Secondary Education, Error Patterns