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About the Assessment: Exclusion 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 may 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.

Grade 4 National and State
Grade 8 National and State
Grade 4 Trend
Grade 8 Trend
Percentage of eighth-grade public and nonpublic school students with disabilities (SD) excluded in NAEP mathematics, as a percentage of identified SD students, by state/jurisdiction: Various years, 1990–2011
  Percentage of identified SD students
State/jurisdiction 19901 19921 1996 2000 2003 2005 2007 2009 2011
    Nation — 59 45 31 22 23 29 22 19
      Nation (public) — 61 47 32 22 24 30 22 19
Alabama 56 53 53 46 15 8 24 13 11
Alaska — — 45 — 6 15 31 25 23
Arizona 51 62 55 19 23 29 27 16 11
Arkansas 70 57 64 14 10 20 18 9 11
California 47 49 55 28 13 17 17 15 9
Colorado 42 44 37 — 11 18 15 16 8
Connecticut 59 45 52 35 23 18 10 14 10
Delaware 41 42 68 — 51 66 43 15 21
Florida 55 52 59 — 13 15 17 13 11
Georgia 49 61 66 39 15 19 50 23 26
Hawaii 49 40 47 27 17 16 10 11 9
Idaho 35 43 — 14 6 15 14 15 14
Illinois 54 — — 30 24 17 35 20 15
Indiana 67 53 46 25 17 23 36 31 17
Iowa 38 40 41 — 14 16 15 16 9
Kansas — — — 26 18 24 30 24 11
Kentucky 63 52 49 32 31 28 49 37 27
Louisiana 63 62 64 20 28 30 26 11 10
Maine — 41 43 18 23 25 29 12 8
Maryland 42 43 52 16 25 33 62 56 51
Massachusetts — 44 44 11 14 33 51 28 18
Michigan 51 64 61 34 33 31 32 24 26
Minnesota 31 47 27 9 14 16 17 17 14
Mississippi — 73 60 52 53 32 22 17 14
Missouri — 40 59 19 23 28 35 26 10
Montana 37 — 35 20 14 17 22 22 13
Nebraska 33 38 35 28 19 9 17 23 24
Nevada — — 55 22 16 19 28 22 28
New Hampshire 36 43 25 — 17 12 17 14 9
New Jersey 55 49 51 — 7 17 18 11 24
New Mexico 68 42 36 39 10 14 18 22 14
New York 53 62 55 24 25 19 22 14 7
North Carolina 34 26 45 30 21 15 14 12 12
North Dakota 34 33 34 15 11 26 43 34 30
Ohio 67 63 — 39 38 40 48 33 34
Oklahoma 66 65 — 28 13 25 56 41 60
Oregon 32 — 33 16 18 19 24 20 10
Pennsylvania 50 49 — — 9 20 24 19 15
Rhode Island 42 35 41 16 13 15 13 10 6
South Carolina — 60 57 30 47 41 40 32 32
South Dakota — — — — 16 17 22 17 12
Tennessee — 48 38 17 18 32 53 36 31
Texas 57 54 57 50 41 41 44 39 42
Utah — 46 49 23 20 19 24 27 25
Vermont — — 35 16 17 21 22 11 6
Virginia 53 47 56 43 39 30 43 24 19
Washington — — 45 — 13 17 28 19 12
West Virginia 58 59 67 18 17 17 11 10 11
Wisconsin 54 47 61 24 17 22 28 16 14
Wyoming 42 45 18 9 7 11 14 13 10
Other jurisdictions  
    District of Columbia 86 85 80 41 32 30 56 34 22
    DoDEA2 — — 33 16 10 13 9 13 16
— Not available. The state/jurisdiction did not participate or did not meet the minimum participation guidelines for reporting.
1 Accommodations not permitted.
2 Department of Defense Education Activity (overseas and domestic schools).
NOTE: Students identified as both SD and ELL were counted only once under the combined SD and/or ELL category. The national results include both public and nonpublic school students. The national (public) and state/jurisdiction results include public school students only.
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), various years, 1990–2011 Mathematics Assessments.