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NAEP Analysis and Scaling → Initial Activities → Summaries of Response Rates for NAEP Assessments → Summary Response Rates for the NAEP 2000 Science State Assessment (Accommodations Permitted [R3])

Summary Response Rates for the NAEP 2000 Science State Assessment (Accommodations Permitted [R3])

The tables below provide relevant summary statistics for the 2000 science state assessment (accommodations permitted [R3]): 2000.

Number of items, by item type and grade, science state assessment (accommodations permitted [R3]): 2000
Grade Multiple-choice items Dichotomous constructed-response items Polytomous constructed-response items
4 69 5 68
8 94 4 99
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Science Assessment.
Average percentage missing, by item type and grade, science state assessment (accommodations permitted [R3]): 2000
Grade Statistic Multiple-choice items Dichotomous constructed-response items Polytomous constructed-response items
4 Average percentage missing 4.16 5.79 11.02
Minimum 0.78 4.02 1.08
Maximum 22.82 7.88 38.38
8 Average percentage missing 1.41 21.17 9.25
Minimum 0.35 7.48 0.93
Maximum 8.10 50.70 43.75
NOTE: Missing responses includes the categories "omitted" and "not-reached".
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Science Assessment.
Average percentage off-task, by item type and grade, science state assessment (accommodations permitted [R3]): 2000
Grade Statistic Dichotomous constructed-response items Polytomous constructed-response items
4 Average percentage off-task 0.02 0.09
Minimum 0.00 0.00
Maximum 0.07 0.49
8 Average percentage off-task 0.09 0.13
Minimum 0.01 0.00
Maximum 0.14 0.78
NOTE: 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), 2000 Science Assessment.
Average weighted percentage correct, by item type and grade, science state assessment (accommodations permitted [R3]): 2000
Grade Multiple-choice items Dichotomous constructed-response items Polytomous constructed-response items
4 51.73 69.11 33.74
8 52.94 21.66 31.94
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Science Assessment.

Last updated 19 February 2008 (TS)

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