NAEP Analysis and Scaling → Estimation of NAEP Score Scales → Treatment of Items to Avoid Violations of Assumptions → Treatment of Items in NAEP Assessments → Treatment of Items in the Scaling of the 2009 Reading Vocabulary Scales

NAEP Technical DocumentationTreatment of Items in the Scaling of the 2009 Reading Vocabulary Scales

Items scaled separately by assessment year, reading vocabulary national assessment, by block and grade: 2009

Grades	Block	Scale1	NAEP ID	Type
1 Single overall scale. NOTE: The Reading Meaning Vocabulary scale was first operational in 2009. In that year a cross-grade scaling approach was used whereby all three grades were scaled together in a single calibration. Although some items were treated separately by grade, all items are on the same scale. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Reading Vocabulary Assessment.
8 and 12	R15	OneScale	R0V0507	Multiple choice
	R15	OneScale	R0V0509	Multiple choice

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