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National Exclusion Rate Tables
 

Percentages of Students in the Nation Identified, Excluded, and Assessed in Science

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.

Learn more about the types of accommodations permitted as part of the science assessment.

 

Percentages of all public and nonpublic school students at grades 4, 8, and 12 identified as students with disabilities and/or English language learners, excluded, and assessed in science: 1996, 2000, and 2005

Student characteristics

1996

2000

2005

Grade 4

SD and/or ELL

Identified

16

17

21

Excluded

6

4

3

Assessed

11

13

18

Without accommodations

7

9

9

With accommodations

4

4

9

SD

Identified

11

11

13

Excluded

3

3

2

Assessed

8

8

10

Without accommodations

4

5

3

With accommodations

4

3

7

ELL

Identified

7

7

9

Excluded

3

2

1

Assessed

4

5

8

Without accommodations

3

5

6

With accommodations

1

1

3

Grade 8

SD and/or ELL

Identified

10

12

17

Excluded

3

3

3

Assessed

7

9

14

Without accommodations

5

7

6

With accommodations

2

2

8

SD

Identified

8

9

12

Excluded

3

3

2

Assessed

5

7

10

Without accommodations

3

5

3

With accommodations

2

2

7

ELL

Identified

3

3

6

Excluded

1

1

1

Assessed

2

3

5

Without accommodations

2

2

4

With accommodations

#

#

1

Grade 12

SD and/or ELL

Identified

7

9

13

Excluded

3

2

3

Assessed

5

7

10

Without accommodations

4

5

5

With accommodations

1

2

5

SD

Identified

5

7

10

Excluded

2

2

3

Assessed

3

5

7

Without accommodations

2

3

3

With accommodations

1

2

4

ELL

Identified

2

2

4

Excluded

#

#

1

Assessed

2

2

4

Without accommodations

2

2

3

With accommodations

#

#

1

# The estimate rounds to zero.

NOTE: SD = students with disabilities. ELL = English language learners. Students identified as both SD and ELL were counted only once under the combined SD and/or ELL category, but were counted separately under the SD and ELL categories. Prior to 2005, students were identified as either ELL or non-ELL; in 2005, students were identified as ELL, non-ELL, or formerly ELL. 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), 1996, 2000, and 2005 Science Assessments.

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