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2011–12 APR Glossary-Base API

Glossary of terms of the Base Academic Performance Index (API) section of the 2011 Base API Report.

This glossary defines key terms shown on the school, local educational agency (LEA), or state Base API, Ranks, and Targets section of the 2011 Base Academic Performance Index Report, which is part of the 2011–12 Accountability Progress Reporting system. Terms described below are listed in the order in which they appear on this section of the 2011 Base Academic Performance Index Report. More detailed information may be found in the 2011–12 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 an LEA's 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 and for LEAs do not currently have growth, target, or statewide or similar schools ranks information. Small schools, with between 11 and 99 valid Standardized Testing Reporting (STAR) Program scores do not receive similar schools ranks. Schools with an approved Alternative Schools Accountability Model (ASAM) application do not receive statewide or similar schools ranks. Special education schools do not receive statewide or similar schools ranks or targets.

Number of Students Included in the 2011 Base API

This is the number of students with valid scores that contribute to the school's, an LEA's, or state's 2011 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.

2011 Base API

The 2011 Base API summarizes a school's, an LEA's, or the state's performance on the spring 2011 STAR Program and 2011 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:

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

2011 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.

2011 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, educational challenges, and opportunities. 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:

2011–12 Growth Target

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

School or Student Group
2011 Base API
2011–12 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
2012 API Target

This item is for school reports only. The 2012 API target is the sum of the 2011 Base API and the 2011–12 Growth Target, except for schools with a 2011 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.

Student Groups

Number of Students Included in the 2011 Base API

This is the number of students with valid STAR Program scores that contribute to the student group's 2011 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 Student Groups

A numerically significant student group for the API is defined as:

Student Group Definitions

Race and ethnicity student groups include:

"Socioeconomically Disadvantaged" is defined as:

"English Learner" (EL) is defined as:

A "Student with Disabilities" is defined as:

These data are based on the results of the spring 2011 STAR Program administration student answer document.

A student who is a member of the socioeconomically disadvantaged, EL, and/or disability student group is also a member of one of the race and ethnicity student groups. Therefore, it is possible that the total percentage of students in all numerically significant student groups at a school, an 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 student group's API.

Student Group API

2011 Base

The 2011 Base API summarizes a student group's performance on the spring 2011 STAR Program and 2011 CAHSEE. It serves as the baseline score, or starting point, of performance of that student group.

2011–12 Growth Target (Comparable Improvement for Student Groups)

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

School or Student Group
2011 Base API
2011–12 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
2012 Target

This item is for school reports only. The student group 2012 API target is the sum of its 2011 Base API and its 2011–12 Growth Target, except for student groups with a 2011 Base API of 800 or more. A student group with a 2011 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 
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