About the Assessment: Inclusion Rates

NAEP has always endeavored to assess all students selected as a part of its sampling process, including students who are classified by their schools as students with disabilities (SD) and/or as English language learners (ELL). The decision to exclude any of these students is made by school personnel. School personnel are encouraged to use inclusion criteria provided by NAEP and may discuss their inclusion decisions with NAEP field staff. Some students participate with testing accommodations. Read more about the NAEP inclusion policy, including exclusion rates from current and previous assessments in all subject areas.

The tables below show the percentage of students identified as SD and/or ELL, and provide the rate of students excluded and accommodated in two ways: as a percentage of all students in the NAEP sample, or as a percentage of students identified as SD and/or ELL. Tables that provide percentages of SD students include those identified under Section 504 of the Rehabilitation Act of 1973, as amended (Title 29 U.S.C. 794 Section 504), which prohibits discrimination on the basis of handicap in federally assisted programs and activities. In addition, the percentages are further disaggregated in the SD tables by showing those who were identified as having an Individualized Education Program (IEP) .

Grade 4 SD/ELL

Percentage of all students

Percentage of identified students

Percentage of fourth-grade students with disabilities (SD) identified, excluded, and assessed in NAEP science, as a percentage of all students, by state/jurisdiction: 2009
	Percentage of all students
State/jurisdiction	Identified	Excluded	Assessed	Assessed without accommodations	Assessed with accommodations
Nation	13	2	11	3	8
Nation (public)	13	2	12	3	9
Alabama	10	1	9	6	4
Alaska	—	—	—	—	—
Arizona	13	2	12	5	7
Arkansas	12	1	11	2	9
California	10	2	7	3	4
Colorado	11	1	10	2	8
Connecticut	13	2	12	2	10
Delaware	15	2	14	2	12
Florida	17	1	15	3	12
Georgia	10	1	10	3	7
Hawaii	10	1	10	2	8
Idaho	10	1	9	3	6
Illinois	15	1	14	3	10
Indiana	16	2	14	5	9
Iowa	14	1	13	2	10
Kansas	—	—	—	—	—
Kentucky	15	2	13	5	9
Louisiana	20	1	18	4	15
Maine	18	1	17	3	14
Maryland	14	2	12	2	10
Massachusetts	19	3	15	2	13
Michigan	14	2	12	4	8
Minnesota	14	2	12	5	8
Mississippi	9	1	9	3	6
Missouri	14	2	13	4	8
Montana	12	1	10	3	8
Nebraska	—	—	—	—	—
Nevada	12	2	10	3	6
New Hampshire	18	2	17	3	14
New Jersey	16	1	14	2	12
New Mexico	13	2	11	3	8
New York	16	1	15	1	14
North Carolina	15	2	13	4	9
North Dakota	16	3	13	4	10
Ohio	14	2	12	2	10
Oklahoma	15	3	12	3	9
Oregon	16	3	13	5	8
Pennsylvania	15	1	14	4	11
Rhode Island	17	2	16	3	13
South Carolina	14	1	13	6	8
South Dakota	15	2	13	6	7
Tennessee	14	2	12	3	9
Texas	10	2	8	2	5
Utah	12	2	10	4	7
Vermont	—	—	—	—	—
Virginia	14	1	13	3	10
Washington	12	2	11	3	7
West Virginia	17	2	16	7	9
Wisconsin	15	2	13	2	11
Wyoming	16	1	14	3	11
Other jurisdictions
District of Columbia	—	—	—	—	—
DoDEA¹	12	1	11	3	8
— Not available. ¹ Department of Defense Education Activity (overseas and domestic schools). NOTE: SD includes those identified under section 504. The national results include both public and nonpublic school students. The national (public) and state/jurisdiction results include public school students only. Detail may not sum to totals because of rounding. SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2009 Science Assessment.