Yellow: Designer; Red: Writer; Green: Scientist. Note: The three graphs in one row represent session 2, session 3, and session 7 respectively.

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