FIGURE 8.5
Nod If You Agree
Nodding is a subtle signal of endorsement and can magnify your response to an argument by making you more confident of your (either positive or negative) opinion. In this study, participants who were instructed to nod their heads while listening to a persuasive message were more likely to agree with the message if the arguments were strong rather than weak. But if they were instructed to shake their heads from side to side, they were not affected by the strength of the argument.
Nod If You Agree
Nodding is a subtle signal of endorsement and can magnify your response to an argument by making you more confident of your (either positive or negative) opinion. In this study, participants who were instructed to nod their heads while listening to a persuasive message were more likely to agree with the message if the arguments were strong rather than weak. But if they were instructed to shake their heads from side to side, they were not affected by the strength of the argument.
[Data source: Briñol & Petty (2003)]