Diplomas Now identifies effective interventions for each of four risk factors and weaves these interventions into the School Improvement Plan. Each risk factor requires a coordinated weave of interventions at three tiers:
- School-wide interventions are part of the daily whole-school and classroom programs. When planned and implemented effectively, whole-school interventions keep 70–80% of students on track. The remaining 20–30% of students require additional supports, either targeted or intensive.
- Targeted interventions, serving 10-20% of students, are defined as having a 1:15 to 1:20 adult-student ratio, with moderate levels concentrated help from the teacher or program provider.
- Intensive interventions, serving up to 10% of students, are defined as having a maximum 1:5 adult-student ratio with high levels of concentrated help from the teacher or program provider.