- Surveys & Programs
- Data & Tools
- Fast Facts
- News & Events
- Publications & Products
- About Us
Table of Contents | Search Technical Documentation | References
NAEP Analysis and Scaling → Estimation of NAEP Score Scales → NAEP Assessment IRT Parameters → Technology and Engineering Literacy IRT Parameters → IRT Parameters for the Technology and Society Content Area, Grade 8 Technology and Engineering Literacy (TEL) National Assessment, by Item and Assembly Unit: 2014
| Assembly unit | Item | NAEP ID | aj | bj | cj | dj1 | dj2 | dj3 | dj4 | dj5 |
|---|---|---|---|---|---|---|---|---|---|---|
| T2 | 1 | D0010CL | 0.38 | -0.93 | † | 1.22 | -1.22 | † | † | † |
| 2 | D0011CL | 0.63 | -1.40 | † | 0.61 | -0.22 | -0.39 | † | † | |
| 4 | D0013CL | 0.39 | 0.74 | † | 0.18 | -0.18 | † | † | † | |
| 5 | D001401 | 0.88 | 0.23 | † | † | † | † | † | † | |
| 6 | D001501 | 1.01 | -0.05 | 0.23 | † | † | † | † | † | |
| T3 | 1 | D0016CL | 0.79 | -1.37 | † | 0.29 | -0.29 | † | † | † |
| 2 | D001701 | 0.98 | -0.45 | 0.23 | † | † | † | † | † | |
| 5 | D0020CL | 0.83 | 0.02 | † | † | † | † | † | † | |
| 6 | D002101 | 0.80 | 0.74 | 0.24 | † | † | † | † | † | |
| 7 | D002201 | 0.57 | 0.80 | † | 1.68 | -1.68 | † | † | † | |
| 8 | D0023CL | 0.62 | -1.10 | † | -0.37 | 0.37 | † | † | † | |
| 9 | D002401 | 0.64 | -0.04 | † | 0.37 | -0.37 | † | † | † | |
| 10 | D002501 | 0.89 | -0.57 | † | † | † | † | † | † | |
| 11 | D002601 | 0.83 | -0.65 | † | † | † | † | † | † | |
| T5 | 1 | D003701 | 1.05 | -0.67 | † | † | † | † | † | † |
| 2 | D003801 | 0.92 | -0.98 | † | † | † | † | † | † | |
| 3 | D003901 | 0.79 | -2.15 | † | † | † | † | † | † | |
| 4 | D004001 | 0.71 | -0.83 | † | † | † | † | † | † | |
| 5 | D004101 | 0.39 | -0.86 | † | -0.80 | 0.80 | † | † | † | |
| 9 | D0045CL | 0.41 | -0.56 | † | † | † | † | † | † | |
| 10 | D004601 | 0.91 | -0.87 | † | † | † | † | † | † | |
| T7 | 5 | D0060CL | 0.67 | -0.72 | † | 0.27 | -0.07 | -0.21 |
† | † |
| 6 | D006101 | 0.55 | 0.96 | † | † | † | † | † | † | |
| 7 | D006201 | 0.48 | 1.44 | † | 0.93 | -0.93 | † | † | † | |
| 8 | D0063CL | 0.82 | 0.59 | † | † | † | † | † | † | |
| T8 | 1 | D0068CL | 0.92 | -1.18 | † | 0.03 | 0.27 | -0.30 | † | † |
| 2 | D0069CL | 0.79 | -1.03 | † | † | † | † | † | † | |
| 3 | D007001 | 1.04 | -1.00 | † | † | † | † | † | † | |
| 4 | D007101 | 0.66 | -1.17 | † | 1.25 | -1.25 | † | † | † | |
| T9 | 1 | D021801 | 0.95 | -1.93 | † | † | † | † | † | † |
| 1 | D021802 | 0.85 | 0.26 | † | † | † | † | † | † | |
| 2 | D0213CL | 0.65 | -0.77 | † | -0.10 | 0.10 | † | † | † | |
| 3 | D014601 | 0.64 | -0.34 | † | † | † | † | † | † | |
| 4 | D019501 | 1.39 | 0.45 | 0.21 | † | † | † | † | † | |
| 5 | D019502 | 0.64 | 0.53 | 0.21 | † | † | † | † | † | |
| 6 | D018901 | 0.88 | 0.89 | 0.19 | † | † | † | † | † | |
| 7 | D015601 | 1.07 | 1.37 | 0.24 | † | † | † | † | † | |
| T11 | 1 | D0197CL | 0.50 | -0.68 | † | -0.42 | 0.42 | † | † | † |
| 2 | D0203CL | 0.45 | -0.28 | † | 0.32 | -0.32 | † | † | † | |
| 3 | D020201 | 1.14 | 0.73 | † | † | † | † | † | † | |
| 4 | D020202 | 1.00 | 0.14 | † | † | † | † | † | † | |
| T12 | 1 | D0089CL | 0.38 | -0.89 | † | 1.01 | 0.22 | -0.88 | 0.38 | -0.74 |
| 2 | D009001 | 0.54 | 0.61 | † | 0.74 | -0.74 | † | † | † | |
| 3 | D009101 | 0.76 | -0.72 | † | † | † | † | † | † | |
| 4 | D009201 | 0.74 | -0.14 | † | † | † | † | † | † | |
| 5 | D0093CL | 0.55 | -0.13 | † | 0.93 | -0.07 | -0.87 | † | † | |
| T14 | 1 | D0099CL | 1.00 | -1.07 | † | 0.57 | -0.57 | † | † | † |
| 2 | D0100TL | 0.94 | -1.39 | † | 0.88 | -0.09 | -0.79 | † | † | |
| 4 | D0102TL | 0.78 | -0.21 | † | 1.74 | -0.07 | -0.08 | -1.58 | † | |
| T15 | 1 | D010401 | 0.84 | -0.70 | 0.19 | † | † | † | † | † |
| 2 | D010501 | 0.32 | 0.86 | 0.27 | † | † | † | † | † | |
| 3 | D010601 | 0.59 | 0.23 | † | 0.41 | -0.41 | † | † | † | |
| 4 | D010701 | 0.76 | -1.39 | † | -0.06 | 0.06 | † | † | † | |
| 5 | D010801 | 0.61 | -0.22 | † | † | † | † | † | † | |
| 6 | D010901 | 0.61 | -1.33 | † | 0.47 | -0.47 | † | † | † | |
| T16 | 1 | D0179CL | 0.49 | -0.53 | † | 0.39 | -0.39 | † | † | † |
| 2 | D017905 | 1.10 | -0.72 | † | † | † | † | † | † | |
| 3 | D015401 | 0.76 | -0.47 | † | † | † | † | † | † | |
| 4 | D015402 | 0.84 | -1.66 | † | † | † | † | † | † | |
| T17 | 1 | D019601 | 0.67 | -0.89 | † | † | † | † | † | † |
| 2 | D015501 | 1.07 | -0.07 | 0.24 | † | † | † | † | † | |
| 3 | D017301 | 0.58 | 0.55 | 0.18 | † | † | † | † | † | |
| 4 | D020101 | 1.13 | 0.71 | 0.30 | † | † | † | † | † | |
| T18 | 1 | D021701 | 0.64 | -0.67 | 0.25 | † | † | † | † | † |
| 2 | D017701 | 0.87 | -0.20 | 0.22 | † | † | † | † | † | |
| 3 | D014401 | 0.82 | 0.27 | 0.23 | † | † | † | † | † | |
| 4 | D014701 | 0.94 | 0.26 | 0.19 | † | † | † | † | † | |
| 5 | D0153CL | 0.34 | -0.38 | † | 0.37 | -0.37 | † | † | † | |
| 6 | D0219CL | 0.75 | -0.63 | † | † | † | † | † | † | |
| 7 | D0178CL | 0.47 | -0.34 | † | † | † | † | † | † | |
| T20 | 3 | D019001 | 0.81 | -0.77 | 0.21 | † | † | † | † | † |
| 6 | D018801 | 1.17 | 0.20 | † | † | † | † | † | † | |
| 7 | D018802 | 0.96 | 0.27 | † | † | † | † | † | † | |
| 8 | D018803 | 1.24 | -0.19 | † | † | † | † | † | † | |
| 9 | D0174CL | 0.87 | 0.75 | † | † | † | † | † | † | |
| 10 | D017409 | 0.72 | -0.56 | † | † | † | † | † | † | |
| † 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)
