Three experiments tested the general hypothesis that values are cultural truisms-that is, beliefs that are widely shared and rarely questioned. Experiment 1 examined specifically whether people lack cognitive support for their values. It was predicted and found that analyzing one's reasons for particular values caused the values to change, a finding that would be expected only if individuals lack cognitive support for their values. Experiment 2 verified that analyzing reasons caused value change only when participants were not provided with cognitive support for their values. Experiment 3 found that the effect of analyzing reasons generalized across a range of ind vidual-differences variables. Experiment 3 also showed that analyzing reasons resulted in value ratings that were less predictive of relevant attitudes than pre-reasons-analysis value ratings, but only for high self-monitors.
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