The table below provides relevant summary statistics for the 2006 economics assessment which was only given at grade 12.
|Grade||Statistic||Multiple-choice items||Dichotomous items||Polytomous items|
|† Not applicable.
1 Missing includes the categories "omitted" and "not-reached".
2 An "off-task" response (constructed-response items only) is a response that is unrelated to the question and is considered inappropriate.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2006 Economics Assessment.
|12||Average weighted number of responses||2300.20||2327.90||2293.20|
|Number of items||155||3||29|
|Average percentage missing1||1.38||7.38||9.75|
|Average percentage off-task2||†||0.67||0.71|
|Average weighted percentage correct||55.06||46.10||41.80|