This dataset provides the percentage of attrition by grade from the end of one school year to the beginning of the next for students in Massachusetts public schools since 2010. The information is as of October 1 of the given school year.

A value of zero indicates that there was no attrition in that grade for the year and student group selected. A blank value indicates that either:

• The school or district is new in the year selected
• The school or district has no students enrolled in that grade level in the year selected
• The school or district has no grade in the given year for students from the previous year to advance
• The data is suppressed because the enrollment total is less than 6

Economically Disadvantaged was used 2015-2021. Low Income was used prior to 2015, and a different version of Low Income has been used since 2022. Please see the DESE Researcher's Guide for more information.

This dataset contains the same data that is also published on our DESE Profiles site:
Attrition

CHART is designed to assist charter schools in monitoring their progress with their Recruitment and Retention Plans which includes deliberate, specific strategies the school will use to attract, to enroll, and to retain a student population that is demographically comparable to similar grades in schools from which the charter school enrolls students. It is a pair of Excel workbooks that provide multi-school, multi-year demographic comparison data in the following categories:

CHART — Enrollment
Enrollment percentages by selected populations and race.

CHART — Indicators
Attrition percentages by grade level and selected populations/race.
Student indicator statistics, including suspensions by selected population/race.

The charter schools are graphed against comparable schools in its region, the median and first quartile of the comparison schools, and the state average. For enrollment demographic indicators, where possible, a statistically-derived "Comparison Index" is also graphed to provide a comparison figure that account for the charter school's size and fluctuations in student populations that yield natural variation in school-level enrollment figures, along with a "Gap Narrowing Target", which provides reference point for progress over time.