Grade 12 Item Map

NOTE: Regular type denotes a constructed-response question. Italic type denotes a multiple-choice question.
* Each grade 12 science question in the 2000 assessment was mapped onto the NAEP 0–300 science scale. The position of the question on the scale represents the scale score attained by students who had a 65 percent probability of successfully answering a constructed-response question or a 74 percent probability of correctly answering a four-option multiple-choice question. Only selected questions from among those that were released after the 2000 assessment are presented. Scale score ranges for science achievement levels are referenced on the map.
SOURCE: National Center for Education Statistics. National Assessment of Educational Progress (NAEP), 2000 Science Assessment.

To interpret the item map, consider, for example, the constructed-response question that maps at a scale score of 163 at grade 12. This question asked students to draw a simplified model of the solar system. Scoring of responses to this question allows for partial credit by using a three-level scoring guide. Mapping the question at the 163 scale score indicates that at least 65 percent of the students performing at this point achieved a score of 3 ("Complete") on the question. Among students with lower scores, less than 65 percent received a score of 3 on the question.

Additional information, such as scoring guides, student responses, and additional data, may be found in the NAEP Question Tool for all questions on this map.

View the grade 4 item map and the grade 8 item map.

---

Last updated 1 November 2001 (CLH)