Introduction
The results of the National Assessment of Educational Progress (NAEP) are reported between six to 18 months after they have been collected. The No Child Left Behind Act mandates reporting of State NAEP Mathematics and Reading Results within six months of the last day of the assessment period. Results for the Trial Urban District Assessment (TUDA) assessments in subjects other than mathematics and reading are usually available within one year of the assessment.
Accessing NAEP Reports
NAEP Reports may be accessed at the Nation's Report Card website 
. For State and TUDA NAEP assessments results, a one-page Snapshot Report is generated for each subject and grade assessed. Links to the most recent California and TUDA Snapshot Reports for the NAEP are provided below.
Interpreting NAEP Results
It is important to keep in mind the following points when interpreting NAEP data.
- The averages and percentages presented are estimates based on samples of students rather than on entire populations.
- The questions students respond to are only a sample of the knowledge and skills covered by the NAEP frameworks.
- Results are subject to uncertainty, reflected in the standard error of the estimates – a range of from less than one point, to over 18 points for smaller sub-groups.
- Differences between scores or between percentages are discussed only when they are significant from a statistical perspective. Some seemingly large differences may not be statistically significant.
- It is important to note that simple cross-tabulations of a variable with measures of educational achievement, like the ones presented in this report, cannot constitute proof that a difference in the variable causes differences in educational achievement.
- The California Assessment of Student Performance and Progress (CAASPP) system is based on a different set of standards than the NAEP assessments. For example, the CAASPP assesses English language arts/literacy, encompassing reading, writing, listening, and research/inquiry; while the NAEP assesses reading.
- Scores on the CAASPP and other assessments are not directly comparable to those on NAEP.
- Achievement levels for California statewide tests and NAEP are not equivalent. Comparisons involving statistics such as percent proficient should be made with extreme caution.
State NAEP Reports
Mathematics
NAEP 2022 Grade 4 Mathematics Snapshot Report for California (PDF)
NAEP 2022 Grade 8 Mathematics Snapshot Report for California (PDF)
Reading
NAEP 2022 Grade 4 Reading Snapshot Report for California (PDF)
NAEP 2022 Grade 8 Reading Snapshot Report for California (PDF)
Science
NAEP 2015 Grade 4 Science Snapshot Report for California (PDF)
NAEP 2015 Grade 8 Science Snapshot Report for California (PDF)
Writing
NAEP 2007 Grade 8 Writing Snapshot Report for California (PDF)
NAEP 2007 Grade 8 Writing Report for California (PDF; 2MB)
Trial Urban District Assessment (TUDA) Reports
Mathematics
TUDA 2019 Math Grade 4 Snapshot Report for Fresno Unified School District
(PDF)
TUDA 2022 Math Grade 4 Snapshot Report for Los Angeles Unified School District
(PDF)
TUDA 2022 Math Grade 4 Snapshot Report for San Diego Unified School District
(PDF)
TUDA 2019 Math Grade 8 Snapshot Report for Fresno Unified School District
(PDF)
TUDA 2022 Math Grade 8 Snapshot Report for Los Angeles Unified School District
(PDF)
TUDA 2022 Math Grade 8 Snapshot Report for San Diego Unified School District
(PDF)
Reading
TUDA 2019 Reading Grade 4 Snapshot Report for Fresno Unified School District
(PDF)
TUDA 2022 Reading Grade 4 Snapshot Report for Los Angeles Unified School District
(PDF)
TUDA 2022 Reading Grade 4 Snapshot Report for San Diego Unified School District
(PDF)
TUDA 2019 Reading Grade 8 Snapshot Report for Fresno Unified School District
(PDF)
TUDA 2022 Reading Grade 8 Snapshot Report for Los Angeles Unified School District
(PDF)
TUDA 2022 Reading Grade 8 Snapshot Report for San Diego Unified School District
(PDF)
Science
TUDA 2009 Science Grade 4 Snapshot Report for Fresno Unified School District
(PDF)
TUDA 2009 Science Grade 4 Snapshot Report for Los Angeles Unified School District
(PDF)
TUDA 2009 Science Grade 4 Snapshot Report for San Diego Unified School District
(PDF)
TUDA 2009 Science Grade 8 Snapshot Report for Fresno Unified School District
(PDF)
TUDA 2009 Science Grade 8 Snapshot Report for Los Angeles Unified School District
(PDF)
TUDA 2009 Science Grade 8 Snapshot Report for San Diego Unified School District
(PDF)
Writing
TUDA 2007 Writing Grade 8 Snapshot Report for Los Angeles Unified School District
(PDF)
TUDA 2007 Writing Grade 8 Snapshot Report for San Diego Unified School District
(PDF)