Grade 4 Item Map

NOTE: Regular type denotes a constructed-response question. Italic type denotes a multiple-choice question.
* Each grade 4 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 multiple-choice question that maps at a scale score of 250 for grade 4. This question concerns the source of stored energy in beans. Mapping the question at the 250 scale score indicates that at least 74 percent of the students performing at this point answered the question correctly. Among students with lower scores, less than 74 percent answered this question correctly.

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 8 item map and the grade 12 item map.

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Last updated 1 November 2001 (CLH)