Inoculation to resist attacks

Abstract

The present study tested inoculation theory in international context. Core inoculation concepts and variables were examined, especially focusing on relationships among inoculation treatments, issue involvement, perceived threat, resistance to counter-attitudinal attack, attitudinal confidence, and change of attitude. A two-wave telephone survey of 206 randomly sampled citizens was conducted in Taiwan. The method of field experiment in a context of the formation of public opinion regarding Taiwan’s political future was performed. Results from the panel data supported major hypotheses of this study. Inoculation strategies elevated people’s resistance to attitude change. People who identified themselves with higher party identification were more resistant to counter-attitudinal political attacks. In addition, people who received an inoculation pretreatment, as compared to those who did not, grew more confident in their attitudes over time. A partial support data also indicated that higher involved participants tended to be more resistant to counter-attitudinal messages. This study has provided international evidence for the robust inoculation theory and related strategies.