You could give the liars a financial incentive. You could play candidates off against each other. You could get them to literally play the game 'diplomacy'.
I think it's very likely that there are special skills involved in the game diplomacy.
There the notion that American politics often resembles poker while the Chinese rather play go. I don't know what heuristics come with the game diplomacy but those heuristics could also matter for politics.
The whole situation also raises a bunch of stress in applicants which can cloud the body language.
Are you aware of any company for which hiring people with high social skills is important who let's their applicants play diplomacy?
There the notion that American politics often resembles poker while the Chinese rather play go.
I think there is a reasonable case that go teaches certain useful skills beyond 'just' providing generic brain excersize. You have to know which groups to fight for and which to abandon, you have to prioritise, you have to avoid becoming fixated on any one part of the board. 'Play urgent moves before big moves' is good life advice.
Diplomacy might train people to avoid being stabbed in the back, or it might train them to stab other people. You could even invent...
In the big survey, political views are divided into large categories so that statistics are possible. This article is an attempt to supply a text field so that we can get a little better view of the range of beliefs.
My political views aren't adequately expressed by "libertarian". I call myself a liberal-flavored libertarian, by which I mean that I want the government to hurt people less. The possibility that the government is giving too much to poor people is low on my list of concerns. I also believe that harm-causing processes should be shut down before support systems
So, what political beliefs do you have that don't match the usual meaning of your preferred label?