Elementary and Secondary Education

Assessments

Table S-13-2. Standard Errors for the Average mathematics scale scores and selected achievement gaps of 4th-, 8th-, and 12th-grade students, by selected student and school characteristics: Selected years, 2000-09

Student or school characteristic	2000	2003	2005	2007	2009
Grade 4
Total	0.9	0.2	0.1	0.2	0.2
Percentage of students in school eligible for free or reduced-price lunch

0–25 percent (low poverty)	1.2	0.3	0.3	0.3	0.4
26–50 percent	1.2	0.3	0.3	0.3	0.4
51–75 percent	1.5	0.4	0.3	0.3	0.4
76–100 percent (high poverty)	1.2	0.5	0.3	0.4	0.4
Gap between high-poverty and low- poverty schools	1.7	0.6	0.4	0.5	0.6

English language learner (ELL) students
ELL students	2.0	0.6	0.5	0.5	0.6
Non-ELL students	0.8	0.2	0.1	0.2	0.2
Gap between ELL and non-ELL students	2.1	0.6	0.5	0.5	0.7

Grade 8
Total	0.8	0.3	0.2	0.3	0.3
Percentage of students in school eligible for free or reduced-price lunch

0–25 percent (low poverty)	1.1	0.4	0.4	0.4	0.5
26–50 percent	1.4	0.4	0.3	0.4	0.5
51–75 percent	1.8	0.7	0.4	0.6	0.7
76–100 percent (high poverty)	2.2	0.7	0.6	0.7	0.7
Gap between high-poverty and low- poverty schools	2.4	0.8	0.7	0.8	0.8

English language learner (ELL) students
ELL students	2.7	1.0	0.8	0.8	0.9
Non-ELL students	0.8	0.3	0.2	0.3	0.3
Gap between ELL and non-ELL students	2.8	1.0	0.8	0.8	0.9

Grade 12
Total	†	†	0.6	†	0.7
Percentage of students in school eligible for free or reduced-price lunch

0–25 percent (low poverty)	†	†	1.0	†	1.3
26–50 percent	†	†	1.0	†	0.7
51–75 percent	†	†	1.3	†	1.2
76–100 percent (high poverty)	†	†	2.7	†	1.7
Gap between high-poverty and low- poverty schools	†	†	2.8	†	2.1

English language learner (ELL) students
ELL students	†	†	2.5	†	1.7
Non-ELL students	†	†	0.6	†	0.7
Gap between ELL and non-ELL students	†	†	2.5	†	1.9
† Not applicable.
SOURCE: U.S. Department of Education, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), selected years, 2000–09 Mathematics Assessments, NAEP Data Explorer.

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