Startz
Muse
Michel, would you be amenable to the following sort of test?
You broadcast a number. Recipients are asked to respond in two parts. The first part is saying whatever they like, the second part is the number and nothing else. You can see the first part. The second part is encoded. Based on the first part, you decide which answers are credible. Then the credible answers have the second part decoded and everyone can see if they match what you sent by more than chance. (Any second part with more than the number is automatically excluded, no matter what it says.)
Would this work for you?
This method would be similar to what we have already tried here, and unnecessarily complicated, in my opinion.
The point is that allows you to fully use your judgement about which answers are credible, while still satisfying your audience that the answers chosen are representative of the entire sample. Isn't that what you want?