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2009–10 APR Glossary-Base API

Glossary of terms of the Base Academic Performance Index (API) section of the 2009 Base API Report.

This glossary defines key terms shown on the school, local educational agency, or state Base API, Ranks, and Targets section of the 2009 Base Academic Performance Index Report, which is part of the 2009–10 Accountability Progress Reporting system. Terms described below are listed in the order in which they appear on this section of the 2009 Base Academic Performance Index Report. More detailed information may be found in the 2009–10 Academic Performance Index Reports Information Guide.

State Accountability: Academic Performance Index

State legislation, the Public Schools Accountability Act (PSAA) of 1999 (Chapter 3, Statutes of 1999), established the Academic Performance Index (API), which summarizes a school's or a local educational agency's (LEA) academic performance and progress on statewide assessments. (An LEA is a school district or county office of education.) The API also is used as an additional indicator for federal Adequate Yearly Progress (AYP) requirements.

The reports for the state, for LEAs, and for schools in the Alternative Schools Accountability Model (ASAM) do not currently have growth, target, or statewide or similar schools ranks information. Small schools with between 11 and 99 valid Standardized Testing and Reporting (STAR) Program scores do not receive similar schools ranks. Special education schools do not receive statewide or similar schools ranks or targets.

Number of Students Included in the 2009 API

This is the number of students with valid scores that contribute to the school's, an LEA's, or state's 2009 Base API. It is possible for a student to have test results contributing to the component score in one content area and not another. For example, if a student did not receive a test score in English-language arts (ELA), but did receive a score in mathematics, the student's mathematics results can still be included in the API score.

2009 Base API

The 2009 Base API summarizes a school's, an LEA's, or the state's performance on the spring 2009 STAR Program and 2009 California High School Exit Examination (CAHSEE). It serves as the baseline score, or starting point, of performance. The API is on a scale of 200 to 1000. It is calculated from the performance of individual students on the following tests:

  • California English-Language Arts and Mathematics Standards Tests (CSTs in ELA and mathematics) - grades two through eleven
  • California Science Standards Test (CST in science) - grades five, eight, and nine through eleven
  • California Life Science Standards Test (CST in life science) - grade ten
  • California History-Social Science Standards Test (CST in history-social science) - grades eight through eleven
  • California Modified Assessment (CMA) in ELA grades three through eight, mathematics grades three through seven, and science, grades five and eight
  • California Alternate Performance Assessment (CAPA) in ELA and mathematics - grades two through eleven, and science, grades five, eight, and ten
  • California High School Exit Examination (CAHSEE in ELA and mathematics) - grade ten (and grades eleven and twelve if students retook either part of the CAHSEE and passed that part)

In addition, APIs also are calculated for numerically significant student subgroups at a school or an LEA.

2009 Statewide Rank

This item is for school reports only. On the API Base reports, schools are ranked in ten categories of equal size, called deciles, from one (lowest) to ten (highest). A school's statewide rank compares that school to other schools of the same type in the entire state. The school types are elementary, middle, and high. Each decile contains 10 percent of all schools of that type. A school's statewide rank is the decile where that school's API Base falls compared with the Base APIs of the other schools statewide of the same school type. Special education schools and schools in the ASAM do not receive statewide ranks.

2009 Similar Schools Rank

This item is for school reports only. In addition to statewide ranks, schools are ranked compared to 100 other schools with similar demographic characteristics. For the similar schools rank, schools are ranked into deciles according to school type: elementary, middle, and high. To determine the similar schools rank for a school, a comparison group of 100 similar schools of the same type is formed for that school, based on similar demographic characteristics. The APIs for this group of 100 schools are ranked into ten categories of equal size, called deciles, from one (lowest) to ten (highest). Each decile contains 10 percent of all of the 100 similar schools in the comparison group. The school's similar schools rank is the decile where that school's Base API falls compared with the Base APIs of the 100 other similar schools in the comparison group. Special education schools, schools in the ASAM, and small schools with between 11 to 99 valid STAR Program scores do not receive similar schools ranks.

The PSAA specifies the demographic characteristics to include in similar schools rank calculations:

  • Pupil mobility
  • Pupil ethnicity (eight variables)
  • Pupil socioeconomic status (two variables)
  • Percentage of teachers who are fully credentialed
  • Percentage of teachers who hold emergency credentials
  • Percentage of pupils who are English learners (ELs)
  • Average class size per grade level
  • Whether the school operates a multitrack year-round educational program
  • Percentage of grade span enrollments (grades two, three to five, six, seven to eight, and nine to eleven)
  • Percentage of students in gifted and talented education program
  • Percentage of students with disabilities (SWDs)
  • Percentage of reclassified fluent-English-proficient (RFEP) students
  • Percentage of migrant education students
2009–10 Growth Target

This item is for school reports only. The state PSAA growth target requirements are shown in the following table:

School or Subgroup
2009 Base API
2009–10 Growth Target
200 - 690
5 percent of the difference between the Base API and the statewide performance target of 800
691 - 795
gain of 5 points
796
gain of 4 points
797
gain of 3 points
798
gain of 2 points
799
gain of 1 point
800 or more
must maintain an API of at least 800
2010 API Target

This item is for school reports only. The 2010 API target is the sum of the 2009 Base API and the 2009–10 Growth Target, except for schools with a 2009 Base API of 800 or more. A school with a Base API of 800 or more is expected to maintain a score of 800 or more to meet its growth target. ASAM schools do not receive API targets.

Subgroups

Number of Students Included in the 2009 API

This is the number of students with valid STAR Program scores that contribute to the subgroup's 2009 Base API. It is possible for a student to have test results contributing to the component score in one content area and not another. For example, if a student did not receive a test score in ELA, but did receive a score in mathematics, the student's mathematics results can still be included in the API score.

Numerically Significant Subgroups

A numerically significant subgroup for the API is defined as:

  • 100 or more students with valid STAR Program scores

    OR

  • 50 or more students with valid STAR Program scores who make up at least 15 percent of the total valid STAR Program scores.
Subgroup Definitions

Race and ethnicity subgroups include:

  • Black or African American
  • American Indian or Alaska Native
  • Asian
  • Filipino
  • Hispanic or Latino
  • Native Hawaiian or Pacific Islander
  • White
  • Two or More Races

"Socioeconomically Disadvantaged" is defined as:

  • A student neither of whose parents have received a high school diploma

    OR

  • A student who is eligible for the free or reduced-price lunch program, also known as the National School Lunch Program (NSLP)

"English Learner" is defined as:

  • A student identified as EL based on the results of the California English Language Development Test (CELDT).

    OR

  • A RFEP student who has not scored at the proficient level or above on the CST in ELA for three times after being reclassified.

A "Student with Disabilities" is defined as:

  • A student who receives special education services and has a valid disability code on the student answer document

    OR

  • A student who was previously identified as special education but who is no longer receiving special education services for two years after exiting special education. This student is not counted in determining numerical significance for the SWDs subgroup.

These data are based on the results of the spring 2009 STAR Program administration student answer document.

A student who is a member of the socioeconomically disadvantaged, EL, and/or disability subgroup is also a member of one of the race and ethnicity subgroups. Therefore, it is possible that the total percentage of students in all numerically significant subgroups at a school, LEA, or the state may exceed 100. The results of ELs who were first enrolled in U.S. schools for less than a year are not included in the API count of valid scores or in school's, an LEA's, or a subgroup's API.

Subgroup API

2009 Base

The 2009 Base API summarizes a subgroup's performance on the spring 2009 STAR Program and 2009 CAHSEE. It serves as the baseline score, or starting point, of performance of that subgroup.

2009–10 Growth Target (Comparable Improvement for Subgroups)

This item is for school reports only. The state PSAA growth target requirements are shown in the following table:

School or Subgroup
2009 Base API
2009–10 Growth Target
200 - 690
5 percent of the difference between the Base API and the statewide performance target of 800
691 - 795
gain of 5 points
796
gain of 4 points
797
gain of 3 points
798
gain of 2 points
799
gain of 1 point
800 or more
must maintain an API of at least 800
2010 Target

This item is for school reports only. The subgroup 2010 API target is the sum of its 2009 Base API and its 2009–10 Growth Target, except for subgroups with a 2009 Base API of 800 or more. A subgroup with a 2009 Base API of 800 or more is expected to maintain a score of 800 or more to meet its growth target.

Questions: Academic Accountability Team | aau@cde.ca.gov | 916-319-0863 
Last Reviewed: Tuesday, November 17, 2015
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