Numerical support, information processing and attitude change

In two experiments we studied the prediction that majority support induces stronger convergent processing than minority support for a persuasive message, the more so when recipients are explicitly forced to pay attention to the source's point of view; this in turn affects the amount of attitude change on related issues. Convergent processing is the systematic elaboration on the sources position, but with a stronger focus on verification and justification rather than falsification. In Experiment 1, it was found that numerical support is related to information processing as predicted The greater the support, the more convergent the processing. Experiment 2 replicated this result, and furthermore confirmed our expectations regarding attitude change: The more convergent processing occurs, the less subjects change their attitude on related issues.