The graphs in one row represent sequence of Mob sessions.

Triangle: Driver; Square: Navigator; Circle: Mob researcher; Dot: Mob discussant

Data points above the x-axis represent that the student's in-action role is the same as his/her assigned role; Data points below the x-axis represent that the student's in-action role is not the same as his/her assigned role; Data points on the x-axis represent that the student's in-action role is obscure.