The authors reported evidence that the effects of ambivalence on information choices depend on amount of issue knowledge, that ambivalence motivates attitude-consistent exposure when issue knowledge is relatively low because less familiar information is perceived to be effective at reducing ambivalence. Conversely, when knowledge is relatively high, more unambivalent (univalent) attitudes predicted attitude-consistent information seeking.
Sawicki, Vanessa, Wegener, Duane T., Clark, Jason K., Febrigar, Leandre R., Smith, Steven M., and Durso, Geoffrey R. A. (2013). Feeling Conflicted and Seeking Information
When Ambivalence Enhances and Diminishes Selective Exposure to Attitude-Consistent Information. Personality and Social Psychology, 39, 735-747.