The study described in your text on "two-faced racism" in research close up found racism among college students is

The study described in your text on "two-faced racism" in research close up found racism among college students is: pervasive in backstage social contexts.

This indicates that those students may not be racist in the eyes of the public, but as soon as no one is paying attention, some of these students may start to display a negative attitude toward other races.