I think they're talking about "Trait entitlement: A cognitive-personality source of vulnerability to psychological distress," based on one of the linked blog po

I think they're talking about "Trait entitlement: A cognitive-personality source of vulnerability to psychological distress," based on one of the linked blog posts mentioning Grubbs and Exline 2016. Unfortunately I haven't been able to find a free copy. Nor does this seem to talk about generational demographics, so I guess that stuff was glommed on from somewhere else.