About the National Data
Data Source: Common Core of Data (CCD), ED/NCES
Baseline: 84.1 percent of students attending public schools graduated with a regular diploma 4 years after starting 9th grade in school year 2015-16
Target: 90.7 percent
Percentage point improvement
The on-time high school graduation rate measures the percent of high school students that graduate within 4 years of starting ninth grade. The four-year regulatory adjusted cohort graduation rate (ACGR) is used for this measure. The ACGR is defined as the number of students who graduate in four years or less with a regular high school diploma divided by the number of students who form the adjusted cohort for the graduating class. In order to calculate and report the 4-year ACGR, states must follow the progress of each individual 9th-12th grade student over time and maintain documentation of students who enter or leave schools or districts within their state. From the beginning of ninth grade (or the earliest high school grade), students who are entering that grade for the first time form a cohort that is "adjusted" by adding any students who subsequently transfer into the cohort from another state and subtracting any students who subsequently transfer out, emigrate to another country, or die.
1. Effect size h=0.2 was chosen to correspond with 20% improvement from a baseline of 50%.