What is the Academic Performance Index (API) and English Learner Academic Performance Index (EL-API)?
An API score is a one-number summary of multiple test scores, with different tests receiving various weights in the index. For elementary schools, students’ results on the California Standards Tests in the core academic subjects of English language arts and math are a major part of the index. All California schools receive an API score between 200 and 1000. California’s new EL-API scores include test results from English learner students only. EL-APIs make it possible to assess schools’ progress helping EL students meet state academic standards. EL-API is a new measure, released for the first time by the California Department of Education in the spring of 2006 based on tests taken in 2005.