The New York Times article Bolton Was Early Beneficiary of Cambridge Analytica’s Facebook Data includes the passage:
In the two years that followed, Mr. Bolton’s super PAC spent nearly $1.2 million primarily for “survey research,” which is a term that campaigns use for polling, according to campaign finance records.
But the contract between the political action committee and Cambridge, a copy of which was obtained by The New York Times, offers more detail on just what Mr. Bolton was buying. The contract broadly describes the services to be delivered by Cambridge as “behavioral microtargeting with psychographic messaging.” (emphasis added)
To do that work, Cambridge used Facebook data, according to the documents and two former employees familiar with the work.
“The data and modeling Bolton’s PAC received was derived from the Facebook data,” said Christopher Wylie, a data expert who was part of the team that founded Cambridge Analytica. “We definitely told them about how we were doing it. We talked about it in conference calls, in meetings.”
The phrase "behavioral microtargeting with psychographic messaging" stands out, and I'm wondering particularly about the second part; "psychographic messaging". What might this mean in this context? Is it just an obscure or stylized phrase, or does it refer to some established concept?
Would "messaging" refer to sending messages as part of the research, or is this term more abstract in this context?