The Academic Performance Index (API) is a numeric index (or scale) ranging from a low of 200 to a high of 1000 that reflects the performance level of a school or local educational agency (LEA) based on the results of statewide testing. The 2006 Base API reports reflect results of 2006 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. The PSAA also calls for an alternative accountability system for schools serving non-traditional populations, which is now under the Alternative Schools Accountability Model (ASAM). Other programs that relate to the API have been added legislatively.
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 improved in a year.
A statewide accountability system mandated by the No Child Left Behind Act of 2001 which requires each state to ensure that all schools and districts make Adequate Yearly Progress (AYP).
Understanding and reviewing the API and AYP results gives potential homeowners / Investors the ability to determine potential investment values of areas they are interested in purchasing and determine the value of the education currently being offered.
You can learn more about the testing and results by going to: