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 eighth-grade students identified as students with disabilities (SD) excluded and assessed in NAEP science, as a percentage of identified SD students, by state/jurisdiction: 2009
	Percentage of identified SD students
State/jurisdiction	Excluded	Assessed	Assessed without accommodations	Assessed with accommodations
Nation	13	87	17	70
Nation (public)	14	86	17	70
Alabama	12	88	59	29
Alaska	—	—	—	—
Arizona	16	84	20	65
Arkansas	9	91	16	74
California	16	84	30	54
Colorado	12	88	12	76
Connecticut	10	90	17	73
Delaware	8	92	8	84
Florida	9	91	8	83
Georgia	13	87	14	73
Hawaii	8	92	27	65
Idaho	13	87	28	59
Illinois	6	94	16	78
Indiana	14	86	11	75
Iowa	8	92	10	82
Kansas	—	—	—	—
Kentucky	19	81	13	68
Louisiana	10	90	13	78
Maine	9	91	16	75
Maryland	20	80	9	71
Massachusetts	17	83	13	70
Michigan	19	81	15	67
Minnesota	14	86	22	63
Mississippi	10	90	15	75
Missouri	8	92	20	72
Montana	16	84	12	73
Nebraska	—	—	—	—
Nevada	12	88	19	69
New Hampshire	10	90	23	67
New Jersey	11	89	8	81
New Mexico	23	77	21	57
New York	7	93	4	89
North Carolina	11	89	9	80
North Dakota	27	73	17	57
Ohio	14	86	7	78
Oklahoma	21	79	16	63
Oregon	13	87	36	52
Pennsylvania	9	91	11	80
Rhode Island	10	90	20	69
South Carolina	14	86	28	58
South Dakota	12	88	23	65
Tennessee	14	86	11	75
Texas	26	74	25	49
Utah	15	85	18	67
Vermont	—	—	—	—
Virginia	12	88	21	67
Washington	17	83	27	56
West Virginia	11	89	24	66
Wisconsin	13	87	14	73
Wyoming	11	89	20	70
Other jurisdictions
District of Columbia	—	—	—	—
DoDEA¹	9	91	14	76
— Not available. ¹ Department of Defense Education Activity (overseas and domestic schools). NOTE: SD includes those identified under section 504. In NAEP, students who have an IEP or a 504 plan are classified as students with disabilities. 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.