Value Relevance and the Value-Attitude Relation: Value Expressiveness Versus Halo Effects

This study examined whether considering the relevance of values to an attitude issue differentiated between two processes potentially underlying the relations between undergraduates' general value priorities and their attitudes toward capital punishment and affirmative action: value expressiveness, whereby attitude express values, and halo effects, whereby attitudes affect perception of values. In line with findings that indicate the attitudes of low self-monitors (SMs) are value expressive, while those of high SMs are not, the impact of value relevance on the value-attitude relation differed for high and low SMs. Low SMs' attitudes were correlated only with those values deemed relevant to an attitude issue, while high SMs' attitudes were related to both relevant and irrelevant values. Regression analyses revealed that controlling for the relation between low SMs' attitudes and irrelevant values slightly increased the relation between their attitudes and relevant values. Controlling for the relation between high SMs' attitudes and irrelevant values, in contrast, decreased the strength of the relation between their attitudes and relevant values. This suggest the magnitude of the relation between attitudes and relevant values, after controlling for the extent to which attitudes are tied to irrelevant values, may reflect the extent to which attitudes are value expressive. The implications of these findings for the methods used to change values and attitudes are also discussed.