We have an app that has a psychometric test to measure people's level of meaning and purpose
That's not a link to an app, that's a link to a sign-up sheet which wants to know my family income. Really?
Besides that, the idea of measuring the "level of meaning" implies that there is a unit of meaning. What might that be?
That's the link to the sign-up page for the app. As you can see from the footer, that information is gathered for the purpose of doing demographic analysis as part of our data analysis.
If you want to know the scientific literature on meaning and purpose, there are plenty of sources available. Here's a good overview, and you can follow the footnotes to learn more.
Richard Kennaway has posted about an edit war on the wiki. Richard, thank you.
Unfortunately, I've only used the wiki a little, and don't have a feeling for why the edit history for an article is inaccessible. Is the wiki broken or has someone found a way to hack it? Let it be known that hacking the wiki is something I'll ban for.
VoiceofRa, I'd like to know why you deleted Gleb's article. Presumably you have some reason for why you think it was unsatisfactory.
I'm also notifying tech in the hope of finding out what happened to the edit history.