Assembly Unit and Scale Composition, Grade 8 Technology and Engineering Literacy (TEL) National Assessment: 2014

NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Scales → Scale Composition by Item Type for New and Trend Blocks → Assembly Unit and Scale Composition, Grade 8 Technology and Engineering Literacy (TEL) National Assessment: 2014

NAEP Technical DocumentationScale composition for assembly units as defined after scaling, grade 8 technology and engineering literacy (TEL) national assessment, by item type and scale: 2014
Scale	Multiple-choice items			Dichotomously scored constructed-response items			Polytomously scored constructed-response items
Scale	Concurrent	Split	Dropped	Concurrent	Split	Dropped	Polytomous (uncollapsed)	Dichotomous collapsed	Polytomous collapsed	Split	Dropped
Total	55	0	0	75	0	0	83	13	1	0	1
Technology and society	17	0	0	27	0	0	26	6	0	0	0
Design and systems	13	0	0	21	0	0	32	0	1	0	0
Information and communication technology	25	0	0	27	0	0	25	7	0	0	1
NOTE: "Concurrent" denotes items that were scaled as the same items across assessment years. "Collapsed" denotes items that had categories that were combined and recoded for scaling. "Dropped" denotes items that were deleted from the final scaling. The number of concurrent polytomously scored constructed-response items is equal to the number in the first three columns under Polytomously scored constructed-response items. In 2014, grades 4 and 12 were not assessed. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2014 TEL Assessment.

Scale composition for assembly units as defined after scaling, grade 8 technology and engineering literacy (TEL) national assessment, by item type and scale: 2014
Scale	Multiple-choice items			Dichotomously scored constructed-response items			Polytomously scored constructed-response items
	Concurrent	Split	Dropped	Concurrent	Split	Dropped	Polytomous (uncollapsed)	Dichotomous collapsed	Polytomous collapsed	Split	Dropped
	Total	55	0	0	75	0	0	85	11	1	0	1
Communicating and collaborating	13	0	0	18	0	0	16	0	0	0	0
Developing solutions and achieving goals	22	0	0	50	0	0	51	10	1	0	0
Understanding technological principles	20	0	0	7	0	0	18	1	0	0	1
NOTE: "Concurrent" denotes items that were scaled as the same items across assessment years. "Collapsed" denotes items that had categories that were combined and recoded for scaling. "Dropped" denotes items that were deleted from the final scaling. The number of concurrent polytomously scored constructed-response items is equal to the number in the first three columns under Polytomously scored constructed-response items. In 2014, grades 4 and 12 were not assessed. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2014 TEL Assessment.

Scale composition for assembly units as defined after scaling, grade 8 technology and engineering literacy (TEL) national assessment, by item type: 2014
Scale	Multiple-choice items			Dichotomously scored constructed-response items			Polytomously scored constructed-response items
Scale	Concurrent	Split	Dropped	Concurrent	Split	Dropped	Polytomous (uncollapsed)	Dichotomous collapsed	Polytomous collapsed	Split	Dropped
Total	55	0	0	75	0	0	83	13	1	0	1
NOTE: Univariate scale. "Concurrent" denotes items that were scaled as the same items across assessment years. "Collapsed" denotes items that had categories that were combined and recoded for scaling. "Dropped" denotes items that were deleted from the final scaling. The number of concurrent polytomously scored constructed-response items is equal to the number in the first three columns under Polytomousely scored constructed- response items. In 2014, grades 4 and 12 were not assessed. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2014 TEL Assessment.

Assembly unit composition as defined before scaling, grade 8 technology and engineering literacy (TEL) national assessment, by item type and assembly unit: 2014
Assembly unit	Total number of items	Number of multiple-choice items	Number of constructed-response items
Assembly unit	Total number of items	Number of multiple-choice items	2-category	3-category	4-category	5-category	6-category
Total	231¹	55	76	83	14	2	1
T1	12	2	3	7	0	0	0
T2	6	1	1	2	1	1	0
T3	11	3	2	6	0	0	0
T4	10	3	3	4	0	0	0
T5	11	0	9	2	0	0	0
T6	9	1	2	5	1	0	0
T7	8	1	4	1	1	1	0
T8	9	2	4	2	1	0	0
T9	12	4	3	4	1	0	0
T10	13	4	2	6	1	0	0
T11	11	4	3	3	1	0	0
T12	9	2	3	2	1	0	1
T13	11	1	6	4	0	0	0
T14	12	3	0	7	2	0	0
T15	11	5	1	5	0	0	0
T16	10	0	5	5	0	0	0
T17	14	3	6	4	1	0	0
T18	12	4	0	7	1	0	0
T19	13	3	7	1	2	0	0
T20	16	7	6	3	0	0	0
T21	11	2	6	3	0	0	0
¹ While 231 items were administered, three items were "lost" as part of cluster item pairs, and one item was dropped for performance issues, further reducing the total number of items after scaling to 227. NOTE: For a small number of constructed-response items, adjacent categories were combined. In 2014, grades 4 and 12 were not assessed. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2014 TEL Assessment.

Last updated 30 August 2021 (ML)