12th grade NAEP results - everyone vs. high-SES

All students:

Below Basic: 37.2

Basic: 48.2

Proficient: 13.0

Advanced: 1.6


Students with high-SES (highest income quartile):

Thirty percent of high-SES students understood mathematics at the Proficient and Advanced levels by 12th grade.

Here's how the scores break down by income quartile. (BB: below basic; B: basic; P: proficient; A: advanced)

Lowest quarter
BB 62.5
B 34.3
P 3.0
A 0.1

Middle-low quarter
46.0
46.2
7.3
0.5

Middle-high quarter
32.4
55.2
11.6
0.8

Highest quarter
17.0
53.0
25.8
4.2


sample questions, all levels

source:
Interpreting 12th-Graders’ NAEP-Scaled Mathematics Performance Using High School Predictors and Postsecondary Outcomes From the National Education Longitudinal Study of 1988 (NELS:88)


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12th grade NAEP results