Educators can lock or unlock Rosters depending on whether they want to prioritize data quality or convenience. Rosters are initially unlocked.
With a Locked Roster, a student can only access the survey if their Roster ID has already been added to the Class Roster. This ensures a student is identified correctly each time they submit a survey, but educators must add students manually before they can take the survey.
With an Unlocked Roster, students add themselves to the Roster the first time they access the survey for a Class. This means educators don’t need to set up their Class Roster in advance, but unlocked rosters can reduce data quality, for example:
If a student accidentally uses different IDs to access the survey (e.g., they mistype their email or they use an email once and a student ID a different time), that student will be treated as multiple students. This will skew data and make it harder to detect meaningful changes.
Until all students are added to a Roster, participation percentages may appear higher.
If using unlocked Rosters, ensure students use a consistent Roster ID to access the survey, e.g., only their student ID or school email. Reinforce this by creating a Roster ID Rule (see below).
How do I lock/unlock a Roster(s)?
Community Leads or Class Leads can lock/unlock Rosters.
From the Classes tab, select the Class you would like to edit by clicking the box next to the Class name
To lock the Roster(s), toggle the Locked button from an X to ✓. The lock icon next to the Class name will appear locked
To unlock the Roster(s), toggle the Locked button from an ✓ to X. The lock icon next to the Class name will appear unlocked