The study cited by you was funded by an LAC–tiny, all male, 880 student, Wabash College in Indiana.
The “research” included surveys of almost 4,200 first year students from 17 schools.
Not surprisingly, 11 of the 17 schools were private LACs, 3 were “regional institutions”, and just 3 were “research universities”.
Also not surprisingly, the article failed to reveal any of the schools whose students participated in the paid study ($50).
@merc81 wrote:
“Three of the four authors of the referenced study (reply #40) hold university positions.”
I find it interesting that an LAC would hire research university staff to do research. (I wonder if the 3 university staffers did the “research” while the fourth non-university hire handed out the checks. 
)
The “research” article is a bit difficult to take seriously. My impression is that the study was funded by the tiny LAC in order to justify its existence.