Is there a student ID field that could be used? How will you be distinguishing one student from another?
Sorry, should have mentioned. Yes - we have a unique student ID that we can match.
Okay that's a good start!
If you'd like to do a percentage change over time, per student id, That could be handled with a Table Calculation.
Here is a picture using Super Store Sales Data (which comes with Tableau). Just replace [Order ID] with [Student ID] and Sales with [Score Dimension]. This should get you in the right direction!
hope this helps!!
Thanks for the speedy reply, Matthew! I'll see what I can do with this.