“…A second implication of our study highlights the importance of focus group testing materials before campaign implementation. As has been demonstrated in other message design studies, 24,25,27,28 conversations with the target audience are critical for health promotion researchers and practitioners being able to find strategies for enhancing persuasiveness, eliminate messages that could have boomerang effects, and improve overall campaign effectiveness. 29 In our study, focus group participants were vocal about what they judged to be potential ineffective messages, some concerns of which are consistent with psychological reactance theory (PRT), which postulates that individuals become psychologically aroused when they perceive threats to their behavioral freedom.…”