The Academic Performance Index (API) is a numeric index (or scale) ranging from a low of 200 to a high of 1000 that reflects a school's or LEA's performance level based on the results of statewide testing. The API was established by California's Public Schools Accountability Act (PSAA) of 1999. The PSAA has three main components: the API, the Immediate Intervention/Underperforming Schools Program (II/USP), and the Governor's Performance Award (GPA) program.

Results from the Standardized Testing and Reporting (STAR) Program and the California High School Exit Examination (CAHSEE) are used in calculating the API. The statewide API performance target for all schools is 800. A school's growth is measured by how well it is moving toward or past that goal. A school's base year API is subtracted from its next year's growth API to determine how much the school grew in a year.

To see the latest results click on the links to view or download the PDF files below.
Source: California Department of Education