NAEP Technical DocumentationTechnology and Engineering Literacy IRT Parameters

The table below contains links to Item response theory (IRT) parameters for NAEP technology and engineering literacy items that were scaled, as well as the assembly unit in which each item appears for grade 8 and the position of each item within its assembly unit. Note that these item parameters are provided in the metrics used for the original calibration of the scales.

Links to item response theory (IRT) parameters, technology and engineering literacy (TEL) national assessment, by scale and grade: 2014

Year	Scale	Grade 4	Grade 8	Grade 12
2014	Univariate	—	R3	—
	Design and systems	—	R3	—
	Information and communication technology	—	R3	—
	Technology and society	—	R3	—
— Not available. In 2014, grades 4 and 12 were not assessed. NOTE: R3 is the accommodated reporting sample. If sampled students are classified as students with disabilities (SD) or English learners (EL), and school officials, using NAEP guidelines, determine that they can meaningfully participate in the NAEP assessment with accommodation, those students are included in the NAEP assessment with accommodation along with other sampled students including SD/EL students who do not need accommodations. The R3 sample is more inclusive than the R2 sample type and excludes a smaller proportion of sampled students. The R3 sample is the only reporting sample used in NAEP after 2001. SOURCE: U.S Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2014 TEL Assessment.

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