The Top 30-Bottom 30 Analysis report provides an analysis of students who scored in the upper, middle, and lower range on state-administered standardized academic tests as compared to their peers within the school. Students in different grades, or who took different assessments, have their scale scores converted to a common scale, which can then be compared.
The data are important because looking at the bottom 30 percent can help educators understand the characteristics of high versus low performing groups and close achievement gaps. The report helps educators evaluate the gap between high performing and low performing students, as measured by standardized tests, and identifies which students or student groups need the most improvement. The gaps between the top 30 percent and bottom 30 percent have been a focus of federal accountability efforts.
The achievement gap is the difference between how well subgroups of students perform on standardized tests compared to their peers. Achievement gap data helps ensure we are meeting education needs equally regardless of gender, race or ethnicity, or socioeconomic status.
Many of the subgroups you select may return results with small numbers of students, so data suppression rules may be in place. This is to protect the privacy of individual students. Whenever report settings would yield fewer than 10 students, less than 5 percent or over 95 percent in any grouping, the data will not display unless you have been granted secure login rights from your educational entity.
Percentages can be misleading; consider the significance of the data when a subgroup is very small. You may see extremes in fluctuation if a subgroup is a small number of students. For example, 100 percent of females may be in the bottom 30 percent, but the subgroup may consist of very few students.
You can view the analysis of assessment performance by school, year, and by subject. After your report appears, you’ll see four bar graphs that rank pupil performance in each of three performance bands: The top 30 percent, the middle 40 percent, and the bottom 30 percent. You'll see a breakdown for race/ethnicity, program participation groups (like English Language Learners and students with disabilities), gender, and grade level for your selected location. Hovering over any of the bars will show percentages for that specific category.
Exploring the Top 30/Bottom 30 Analysis report can answer questions like the following:
What is the top 30 / bottom 30 analysis of my school?
Select the school you are looking for under Edit Report/Find Location. Under Report Settings choose the year and subject you wish to select. Click View Results.
I'm a math teacher. Which student groups need the most focus to help to close achievement gaps?
Select the school you're looking for under Edit Report/Find Location. Under Report Settings, choose the year you wish to select. Under Subject choose Mathematics. Click View Results. When your report appears, you'll see an assessment analysis in mathematics for the bottom 30 percent to top 30 percent rankings for Race/Ethnicity, Program Participation groups, Gender, and Grade levels for your selected location.
What are the score distributions of economically disadvantaged students in my school?
Select the school you're looking for under Edit Report/Find Location. Under Report Settings choose the year and subject you wish to select. Click View Results. When your report appears, scroll down to the second graph labeled program participation. You'll see the distribution of students who are economically disadvantaged into Top 30%, Middle 40%, and Bottom 30%.
How can I get a spreadsheet to examine this data?
At the top of the page to the right of the Edit Report button, you'll find a Download/Print button. This will provide a spreadsheet of the data from your current search settings. You can download the data as a PDF file or a.CSV file.
The Top 30/Bottom 30 Analysis report only includes the scores of students who have been at a school for a full academic year. For this report, the scores are shown in the school where the student completed the academic year. See the Accountability Scorecard overview for details. The data is updated annually in the fall along with the accountability data.
Location/Entity: You can select and compare data at different entity levels: statewide, by intermediate school district (ISD), by school district, and by individual schools that include all local education agency (LEA) and public school academy (PSA) schools. Public school academies, also known as charter schools, are considered their own school district.
LEA: Local educational agency such as a school district or charter school/public school academy (PSA).
School Year: The high school student’s graduation year.
Economically Disadvantaged: Students who have been determined eligible for free or reduced-price meals, via locally gathered and approved family applications under the National School Lunch program, are in households receiving food (SNAP) or cash (TANF) assistance, are homeless, are migrant, or are in foster care.
Race/Ethnicity: Information about race and ethnicity categories can be found on the CEPI website. Note: When viewing trend data, you may see gaps and breaks because federal definitions and categories have changed over the years.
Gender: The sex of the student, male or female.
English Language Learners: Limited English Proficient (LEP) students who speak a language other than English as their primary language and have difficulty speaking, reading, writing, or understanding English.
Migrant Students: A student whose family has moved within the previous 36 months to obtain temporary or seasonal work in agriculture or fishing.
Students with Disabilities: Students with one or more specific impairments that require special education or related services and have an Individual Education Plan (IEP).
<10, <5%, >95%: These labels are used in place of the actual data when there is a risk of identifying an individual student (unless you have logged in as a secure user).
Ungraded: Students receiving special education services who are not assigned a grade level. For school years through 2011-12, these students may be of any age. Beginning with the 2012-13 school year, a student must be age 18 or older as of December 1 to be included in the ungraded category or an entity that doesn’t have a graded environment, such as an ISD or district.
The Center for Educational Performance and Information (CEPI) collected the data used to compile this report. The databases used include:
Alert! You must choose valid Report Settings to view data.
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