English Language Arts
8.7%
State avg 49.1%
District avg 33.1%
County avg 52.7%
+5.7pp since 2014-15
District avg 33.1%
County avg 52.7%
+5.7pp since 2014-15
Test scores
See how it ranks: all California schools by score · Contra Costa County schools by score
CAASPP Smarter Balanced, SY 2024-25
All grades, all students. % met or exceeded standard.Math
3.3%
State avg 37.7%
District avg 16.7%
County avg 43.1%
+1.3pp since 2014-15
District avg 16.7%
County avg 43.1%
+1.3pp since 2014-15
BeatsExpectations
Not computed for this schoolBeatsExpectations is not computed for specialized-population schools (schools for the deaf or blind, therapeutic and behavioral-health placements, juvenile-justice and alternative-education settings, and similar). State ELA/Math proficiency rates are not a comparable metric for these populations, so a demographically-adjusted residual against general-enrollment peers would be misleading. About the methodology →
By grade, SY 2024-25
School score vs state average per tested grade.| Grade | English Language Arts | Math | ||||
|---|---|---|---|---|---|---|
| School | State | n tested | School | State | n tested | |
| Grade 11 | 8.7% | 57.3% | 92 | 3.3% | 30.9% | 92 |
Performance levels, SY 2024-25
Share of tested students at each CAASPP Smarter Balanced level.English Language Arts
| Grade | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| All grades | 0.0% | 8.7% | 30.4% | 60.9% |
| Grade 11 | 0.0% | 8.7% | 30.4% | 60.9% |
Math
| Grade | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| All grades | 0.0% | 3.3% | 3.3% | 93.5% |
| Grade 11 | 0.0% | 3.3% | 3.3% | 93.5% |
Each tested student counts in exactly one level, so each row adds to about 100%. The headline met or exceeded standard rate is the sum of the top two levels.
10-year history
All grades, all students. Black Diamond California avgEnglish Language Arts
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2024-25 | 8.7% | 33.1% | 52.7% | 49.1% |
| SY 2023-24 | 4.2% | 28.5% | 51.0% | 47.1% |
| SY 2022-23 | 3.9% | 28.7% | 51.2% | 46.7% |
| SY 2021-22 | 6.4% | 33.2% | 51.8% | 47.1% |
| SY 2020-21 | N/A | N/A | 52.7% | 49.0% |
| SY 2018-19 | 2.5% | 35.6% | 55.0% | 51.1% |
| SY 2017-18 | 0.0% | 34.3% | 54.8% | 49.9% |
| SY 2016-17 | 4.5% | 33.3% | 54.7% | 48.6% |
| SY 2015-16 | 1.0% | 34.2% | 55.1% | 48.1% |
| SY 2014-15 | 3.0% | 29.7% | 51.9% | 44.0% |
Math
| Year | School | District | County | State |
|---|---|---|---|---|
| SY 2024-25 | 3.3% | 16.7% | 43.1% | 37.7% |
| SY 2023-24 | 0.0% | 15.2% | 41.6% | 35.6% |
| SY 2022-23 | 0.0% | 14.8% | 41.0% | 34.6% |
| SY 2021-22 | 0.0% | 15.1% | 40.2% | 33.4% |
| SY 2020-21 | N/A | N/A | 44.2% | 33.7% |
| SY 2018-19 | 0.0% | 20.8% | 45.1% | 39.8% |
| SY 2017-18 | 0.0% | 19.7% | 44.8% | 38.7% |
| SY 2016-17 | 0.0% | 19.9% | 45.0% | 37.6% |
| SY 2015-16 | 0.0% | 22.1% | 45.1% | 36.7% |
| SY 2014-15 | 2.0% | 21.2% | 42.6% | 33.6% |
How to read these scores
What is CAASPP Smarter Balanced?
CAASPP (the California Assessment of Student Performance and Progress) is California's annual statewide test. Public-school students in grades 3 through 8 and grade 11 take the Smarter Balanced Summative Assessments in English Language Arts and Math each spring.
What does "% met or exceeded standard" mean?
It is the percentage of students at the school whose scores were rated "Standard Met" or "Standard Exceeded" on the test. Those are the top two of four performance levels, and they signal the student is performing at grade level or above. A higher number is better.
What does 8.7% mean for English Language Arts at Black Diamond High (Continuation)?
It means about 8.7 percent of students tested at Black Diamond High (Continuation) performed at grade level or above on the CAASPP Smarter Balanced English Language Arts test in 2024-25. The statewide average for California that year was 49.1%. The other students fell into the lower performance levels.
How is the state average calculated?
It is a weighted average, not a simple average of each school's number. We multiply each public school's score by how many of its students tested, add those together for all schools in California, and divide by the total students tested that year. This way a big school with 1,500 students counts more than a small school with 50 students, which is the right way to ask "how did the typical student do this year?". District and county averages on this page use the same method, just scoped to that district or county.
Where does this data come from?
California Department of Education, CAASPP Smarter Balanced Summative Assessment. School-level "All Students" subgroup. Scores suppressed for groups under 11 students.
How often is it updated?
CAASPP Smarter Balanced is administered once a year (spring). Results are released by the state in the summer or early fall. We refresh this page after each annual release.