IRT Parameters for the Information and Communication Technology Content Area, Grade 8 Technology and Engineering Literacy (TEL) National Assessment, by Item and Assembly Unit: 2014

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NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Assessment IRT Parameters → Technology and Engineering Literacy IRT Parameters → IRT Parameters for the Information and Communication Technology Content Area, Grade 8 Technology and Engineering Literacy (TEL) National Assessment, by Item and Assembly Unit: 2014

NAEP Technical DocumentationIRT parameters for the information and communication technology content area, grade 8 technology and engineering literacy (TEL) national assessment, by item and assembly unit: 2014
Assembly unit	Item	NAEP ID	a_j	b_j	c_j	d_j1	d_j2	d_j3
T1	1	D0001CL	0.63	2.25	†	†	†	†
	2	D0002CL	0.68	0.27	†	†	†	†
	3	D0003CL	0.68	-1.41	†	0.59	-0.59	†
	4	D000401	0.73	0.33	0.11	†	†	†
	5	D0005CL	0.96	-0.53	†	0.45	-0.45	†
	6	D000601	0.89	-0.53	†	†	†	†
	7	D000701	1.40	-1.05	†	†	†	†
	8	D000801	0.59	-0.39	†	0.94	-0.94	†
	9	D0009CL	0.37	-1.49	†	†	†	†
	1	D022101	0.45	0.04	†	0.25	-0.25	†
	2	D016401	0.48	0.64	0.27	†	†	†
	3	D0229CL	0.61	0.89	†	†	†	†
T3	3	D001801	0.90	-0.23	†	†	†	†
T3	4	D001901	0.95	0.13	0.21	†	†	†
T5	6	D004201	0.61	1.49	†	†	†	†
	7	D004301	0.82	0.90	†	†	†	†
	8	D004401	0.44	-1.16	†	†	†	†
	11	D004701	0.27	-1.66	†	-0.17	0.17	†
T6	1	D004801	0.60	-0.64	†	0.93	-0.93	†
	2	D004901	0.91	-1.59	†	†	†	†
	3	D005001	0.56	0.10	†	0.44	-0.44	†
	4	D005002	0.40	-0.85	†	0.17	-0.59	0.41
	5	D005101	0.53	1.12	†	†	†	†
	6	D0052CL	0.63	-2.65	†	†	†	†
	7	D005301	0.73	-0.31	†	-0.20	0.20	†
	8	D0054CL	0.77	0.33	†	†	†	†
	9	D005501	0.87	0.83	0.21	†	†	†
T7	1	D005601	0.51	-0.36	†	†	†	†
	2	D005701	0.75	-1.08	0.16	†	†	†
	3	D005801	0.96	-0.46	†	†	†	†
	4	D005901	0.48	0.79	†	-0.09	0.86	-0.77
T8	1	D018101	0.75	-0.19	0.18	†	†	†
	2	D0208CL	0.60	-0.39	†	0.33	-0.33	†
	3	D014001	0.63	0.17	0.20	†	†	†
	4	D0222CL	0.74	0.17	†	†	†	†
	5	D023001	0.68	1.09	†	†	†	†
T10	6	D0234CL	0.35	2.30	†	1.94	-1.94	†
	1	D0076CL	0.53	-2.33	†	-1.10	1.10	†
	2	D0077CL	0.62	-1.71	†	†	†	†
	3	D0078CL	0.86	-0.53	†	†	†	†
	6	D008101	0.50	-0.13	†	-0.31	0.31	†
T11	1	D008201	0.73	-1.67	0.19	†	†	†
	2	D0083CL	0.48	-0.07	†	1.38	-1.38	†
	3	D008401	0.44	-0.75	0.18	†	†	†
	4	D008501	0.32	-3.32	0.20	†	†	†
	5	D0086CL	0.80	-0.89	†	†	†	†
	6	D008701	0.58	-0.64	0.16	†	†	†
	7	D008801	0.61	-0.67	†	1.03	-0.57	-0.47
T12	1	D013901	0.55	-1.38	†	†	†	†
	2	D013801	1.57	-0.11	0.42	†	†	†
	3	D013802	0.52	0.72	†	-0.78	0.78	†
	4	D018301	0.89	1.51	0.18	†	†	†
T13	1	D018001	0.54	-0.96	†	†	†	†
	2	D021001	1.08	-0.05	0.20	†	†	†
	3	D0159CL	0.36	-0.17	†	2.15	-2.15	†
	4	D0223CL	0.42	0.32	†	-0.66	0.66	†
	5	D0162CL	0.23	0.53	†	-1.13	1.13	†
	6	D022401	0.95	0.91	†	†	†	†
T19	1	D0128CL	0.40	-0.61	†	†	†	†
	2	D0129CL	0.63	-1.61	†	†	†	†
	3	D013001	0.52	-1.17	0.20	†	†	†
	4	D013101	1.06	-0.02	0.19	†	†	†
	7	D022801	0.80	0.10	†	†	†	†
	8	D020701	0.63	-0.16	†	†	†	†
	9	D0158CL	1.27	1.12	†	†	†	†
T20	1	D022001	0.75	-1.64	0.20	†	†	†
	2	D016301	0.49	-1.50	0.19	†	†	†
	4	D016901	0.84	-0.40	0.22	†	†	†
	5	D018201	0.52	-1.40	†	†	†	†
	1	D013201	1.08	-0.37	0.15	†	†	†
	2	D0133CL	0.48	-1.70	†	0.05	-0.05	†
	3	D0134CL	0.62	-1.00	†	0.53	-0.53	†
	4	D013501	0.88	0.78	0.12	†	†	†
	5	D013601	1.00	0.21	0.14	†	†	†
	6	D013701	1.20	0.85	†	†	†	†
T21	1	D016801	0.43	-1.64	0.21	†	†	†
	2	D0232CL	0.29	-1.52	†	-1.11	1.11	†
	3	D023101	0.33	-1.00	†	-1.49	1.49	†
	6	D016101	0.80	-0.13	†	†	†	†
	7	D016102	0.82	0.23	†	†	†	†
	8	D017101	0.38	0.66	†	-0.23	0.23	†
	9	D020601	0.55	0.98	†	†	†	†
	10	D020602	0.50	0.74	†	†	†	†
	11	D020603	0.80	1.83	0.24	†	†	†
† Not applicable: c parameters are not estimated for the two-parameter logistic model or generalized partial credit models, and d parameters are not estimated for two-parameter or three-parameter models. NOTE: For item j, aj represents the discriminatory power of the item, bj represents a location parameter related to item difficulty, cj represents the guessing parameter, and dji represents the category threshold parameter for category i. The c parameter is assumed to be exactly zero and is not estimated for items scaled with the two-parameter logistic model. For item j, dji may not sum to zero because of rounding. 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)

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