The Key Input: Days/Week

Context

Days/Week is the key input metric we track at Once. This metric tracks whether or not instructional sessions are occurring as scheduled. If sessions are not occurring Once will not be effective, no matter how well trained and coached the instructor is. Therefore to improve school performance, the first thing we attempt to optimize is Days/Week.

Definition

Days/Week is the number of sessions that have occurred divided by the number of sessions scheduled, multiplied by 5.

The number of scheduled sessions is the number of dates in the instructor log that are either:

• Blank (we don't know what happened on that day)

• Have a cycle entered (the student had a session and progressed in Once that day)

• Have an "s" indicating a student absence

• Have an "i" indicating an instructor absence

• Have an "o" indicating that the instructor was unable to provide instruction because of another responsibility.

Sessions are not scheduled during a school holiday or vacation.

Days/Week Lost to Other Responsibility

When schools are trying to improve Days/Week, the first place to focus is days when the student and the instructor were both in school but the student didn't get Once even though they were supposed to. The typical reason for this would be that the instructor is pulled from instruction during the day to cover other responsibilities within the school.