I'm showing score reports for the BigQuiz app. This is an individual players score compared to the maximum he could have got as well as the number of questions that were correctly answered, and also comparing that with all players.
Try the App here.
This a very simple visualization, and uses D3. However, it's straightforward enough that I don't need to even bother with creating D3 charts. I can just use the Configurable circular timer with D3 as described in Quick doughnut and pie charts with a radial timer.
Here's what they look like.
Services > Desktop Liberation - the definitive resource for Google Apps Script and Microsoft Office automation > Complete Apps Script Applications > BigQuiz app >