Table 1 Variables included in constrained randomization
Characteristic | Balance for constrained randomization | Source |
|---|---|---|
High school | ||
% American Indian | Within 5 percentage points | National Center for Education Statistics [27] |
Absenteeism rate | Within 5 percentage points | Oklahoma School Report Cards [28] |
% Free/reduced price lunch | Within 5 percentage points | National Center for Education Statistics [27] |
Rate of substance use incidents per 100 students | Within 0.5 incidents per 100 students | Oklahoma Department of Education Annual Incident and Suspension Report [29] |
Four-year graduation rate | Within 5 percentage points | Oklahoma School Report Cards [28] |
Class size | Within 5 students or 10% | National Center for Education Statistics [27] |
Community | ||
Medical marijuana dispensary | No more than 1 discrepant community across conditions | OMMA Dispensary List [30] |
City police | No more than 1 discrepant community across condition | Google search |
Mental health counselors | Mean number per condition within 1 | OK State Board of Behavioral Health-LPC License Search [31] |