The most important goal of the public K-12 education system is a high school diploma. However, the US adjusted cohort graduation rate is only 84.1%[1]. South Korea[2] and Finland[3] graduate 93% of their high school students, a more significant percentage of students.

This research looked at three different variables from the Department of Education Office for Civil Rights (OCR) bi-annual data and its correlation to high school graduation rates. The Every Student Succeeds Act (ESSA) has a new Fifth Indicator variable by which to evaluate and judge individual schools and districts, which is 20% of the total score. This Indicator is a non-academic variable as the other 80% of the school’s score reflects the school’s academics. Three quarters of the states choose chronic absenteeism or attendance as one of its metrics[4], and three quarters of the states also choose to measure career or college readiness, such as a minimum score on an SAT or ACT test or access to higher level, advanced courses. Three states, Connecticut, Vermont and Michigan for K-8 only[5], also include physical education as part of their Fifth Indicator and that is also examined.

The Data

The Department of Education graduation data provides Adjusted Cohort Graduation Rates (ACGR) for 23,090 high schools. The four year ACGR is the number of students who graduate in four years or less with a regular high school diploma divided by the number of students who formed the cohort for that graduating class, starting in 9th grade. However, to protect student privacy, if there are less than 5 students in the cohort, no data is provided and for cohorts less than 200, a range is given. The smaller the cohort the wider the range will be. When a range is given, this research assumed the average number of the range.

The Office for Civil Rights (OCR) data has 96,360 pre-schools, elementary, middle, high schools, juvenile justice, alternative, special education, and charter schools with 1,836 variable including bullying, teacher-student ratio, certification, absenteeism, sports participation, and more divided by gender, ethnicity, LEP, and 504 subsets.

Each dot on the charts represents a single high school’s graduation rate on the y axis and the chronic absenteeism, AP class participation rate or sports participation rate on the x axis. The solid line is the linear regression, and the national Adjusted R Squared value is at the top of each chart.

Chronic Absenteeism

Previous research has identified chronic absenteeism as highly correlated to lower academic achievement and graduation rates. The federal standard for chronic absenteeism in this data set is a student chronically absent for missing 15 school days in a school year. Many states have adopted a slightly different standard of missing 10% of the school year or 18 days in a typical 180 school year.

This research shows a negative correlation between high school graduation rates and chronic absenteeism. The downward slopping liner regression means that the higher the chronic absenteeism rate the lower the graduation rate. Although some regression lines are steeper than others, this negative relationship is true in every state in the Union.

AP Class Participation Rate

Enrolling in a class in high school that represents the work and skills needed for an introductory college class has a positive relationship with graduation. This metric does not include whether a student took the AP exam, passed with the exam with 3 or higher, failed the exam, or if the AP class was in a science or math. This metric is only the percentage of students at the school that took at least one AP class. AP class participation positively influences higher graduation rates, and although a few states seem to have flat lines, the overall trend seems to be that it does make a difference towards greater high school graduation rates.

Sports Participation Rate

About a third of students participate in a high school sport and it also seems to have a positive influence on graduation rates. This seemed to be one of the more surprising relationships with graduation, but being part of high school sports team teaches many life lessons. Athletes are often an important representative of their school and community, generating pride in themselves. They develop teamwork and collaboration skills, learn the value of practice and self-discipline. It’s fun and enjoyable and in many states the right to be on a team requires daily attendance at school, acting as a brake on chronic absenteeism. Three states, District of Columbia, Montana and South Dakota did show a negative relationship, but those three states are smaller than average, so a few schools can have skew the results.

Links to the data:

https://www2.ed.gov/about/inits/ed/edfacts/data-files/acgr-sch-sy2013-14.csv

https://www2.ed.gov/about/inits/ed/edfacts/data-files/acgr-sch-sy2015-16.csv

https://www2.ed.gov/about/offices/list/ocr/docs/crdc-2013-14.html

https://www2.ed.gov/about/offices/list/ocr/docs/crdc-2015-16.html

Footnotes:

[1] http://www.americaspromise.org/

[2] https://abcnews.go.com/Business/story?id=6293334&page=1

[3] https://www.businessinsider.com/finland-education-school-2011-12#teachers-are-selected-from-the-top-10-of-graduates-19

[4] https://www.the74million.org/article/educators-hoped-essas-5th-indicator-would-paint-a-clearer-picture-of-student-success-but-with-some-states-now-choosing-up-to-11-different-measures-experts-worry-results-ar/

[5] https://www.the74million.org/article/educators-hoped-essas-5th-indicator-would-paint-a-clearer-picture-of-student-success-but-with-some-states-now-choosing-up-to-11-different-measures-experts-worry-results-ar/