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API Growth
API Base
Academic Performance Index (API) - 2013 Growth
Alameda County Community
(CDS code 01-10017-0130419)

Note: California is overhauling its student testing and school accountability systems. To learn more, see Changes to California's K-12 Education System. Please visit the new Ed-Data website for the latest data and explanations.

California's public school students take part annually in statewide testing known as the Standardized Testing and Reporting (STAR) program, and schools are assigned an Academic Performance Index (API) based on results from STAR testing. Under the federal law known as No Child Left Behind (NCLB), from 2003 forward the API is also used to evaluate schools for Adequate Yearly Progress (AYP).

    The following 2013 Growth API report, from data initially released early in the 2013-14 school year, shows results from tests given in spring 2012 (which established the baseline and growth targets) and spring 2013 (which measured if the growth target was met).

     Click here for STAR test information on the CDE website.


API Score, Ranks and Targets
Click on the underlined words below for more detailed information.
2013 API School Type Small High School Schools are designated as elementary, middle, high or small (11 to 99 valid test scores).
Growth Information
2013 Growth API 493 Scale of 200 to 1,000; calculated using the same formulas as 2012 Base API.
Met 2013 Growth Target  No Succeeded or failed in making 5% improvement toward interim goal of 800, or remained above 800 if 2012 Base API was 800 or greater.
Subgroups Met Growth Target  Yes Ethnic and economically disadvantaged subgroups of students must show comparable improvement.
 Base Information
2012 Base API 545 Scale of 200 to 1,000.
2013 Growth Target 13 5% of the difference between 800 and the school's 2012 Base API, with exceptions
2013API Target 558 2012 Base API plus the 2012-2013 growth target
2012 Statewide Rank N/A Each rank has 10% of all schools of the same type; 1 is lowest, 10 is highest.
2012 Similar Schools Rank N/A Each rank has 10% of the 100 most similar schools; 1 is lowest, 10 is highest.
2012 School Characteristics Index (SCI) N/A SCI values typically range from 100 to 200. The SCI values primarily reflect student demographics and are associated with student performance on state tests. The 50 schools of the same type (i.e. elementary, middle, or high) with SCI values just above this school's SCI and the 50 schools of the same type with values just below form its comparison group of 100 most similar schools.
Note: N/A indicates data is not applicable or not available.
Source: California Department of Education: Analysis, Measurement, and Accountability Reporting Division (API 2013 Growth file api13gdb dated 3/11/14; API 2012 Base file api12bdb dated 5/6/13 for statewide rank and similar schools rank)

Student Subgroup Performance
Student Subgroups # Pupils 2013 API Growth 2012 API Base Growth
Black or African American 15 520 -- --
American Indian or Alaska Native 0 -- -- --
Asian 0 -- -- --
Filipino 1 -- -- --
Hispanic or Latino 16 444 577 --
Native Hawaiian or Pacific Islander 1 -- -- --
White 6 -- -- --
Two or More Races 0 -- -- --
Other Subgroups
Socioeconomically Disadvantaged 34 482 541 --
English Learners 9 -- 557 --
Students with Disabilities 7 -- -- --
All Students Included in Growth API 39 493 545 -52
Note: Beginning with the release of the 2010 Base API, API scores are reported for all subgroups with 11 or more students. For previous years, API scores are reported only for subgroups that are numerically significant (i.e. with 100 pupils or 15% of total enrollment with at least 50 pupils with valid test scores). Regardless of whether or not an API score is reported, only subgroups that are numerically significant receive API growth targets.

All subgroup data are missing if the district reported a potential data error in at least one student subgroup. Socioeconomically Disadvantaged, English Learners, and Students with Disabilities subgroups are missing API data if there was a decrease in the number of students in the group by at least 20 percent from the Base API to the growth API, or if the district reported a potential data error with one or more of these student groups.

"B" means the school did not have a valid prior year Base API and will not have any growth or target information.

"C" means the school had significant demographic changes and will not have any growth or target information.

N/R indicates data not reported prior to 2008-09.

The total number of students will not be equal to the sum of the subgroup student numbers since there is overlap in the Student Subgroups and the Other Subgroups.
Source: California Department of Education: Analysis, Measurement, and Accountability Reporting Division (API 2013 Growth file api13gdb dated 3/11/14)

    The complete API results and backup detail are on the California Department of Education web site. These include the API and growth target for the school as a whole and for ethnic and socioeconomic subgroups that are "numerically significant." You will also find details of the school's demographic characteristics used for comparisons.

    For more information see Understanding the API.


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Ed-Data is a partnership of the California Department of Education, EdSource and the Fiscal Crisis & Management Assistance Team (FCMAT) designed to offer educators, policy makers, the legislature, parents, and the public quick access to timely and comprehensive data about K-12 education in California.