Consider revising the control text
Now that we have additional context presented along side every question in the intervention, should we consider revising the control text so that it includes all this text? Otherwise, if the control text is very different in content, does it undermine our experimental design somewhat? If we see a difference between the control and the intervention, couldn't that be attributed to the different contexts of the texts presented, rather than to the different interfaces and the active estimation and interactivity?