Based on measured outcome evidence for The Learner First work to date, primarily with Title One schools (or international equivalent), a school can positively accelerate progress (i.e. more than one year’s progress in a year) for at least half of your focal students (and, in schools who embed the process fully, greater than that).
When a school takes a particular cohort of focal students, concentrating on them relentlessly for three consecutive years, 100% success is achievable for that group – the kids who many thought would never succeed.
Some students will accelerate and be succeeding by the end of the year; some will accelerate towards those goals and require additional support for following years. But they will be accelerating, not just progressing at the expected rate. Consider, these are the learners who have experienced the least educational success so far; they are not the kids just below a benchmark.