Self-reflection and feelings of self-worth: When Rosenberg meets Heisenberg

The more people think about their attitude toward some issue, the stronger their attitude becomes. The present research examined whether this strengthening effect also applies to self-evaluative attitudes. In four studies, we had some participants complete a self-evaluation measure before rating their momentary feelings of self-worth (Studies 1, 2, and 4) or implicit self-feelings (Study 3). In all four studies, evaluative self-reflection led low self-esteem participants to feel worse about themselves and high self-esteem participants to feel better about themselves. We did not find this self-esteem polarization effect when more general emotions of happiness and sadness were measured (Study 2) or when participants reflected on non-evaluative aspects of themselves (Study 4). These findings suggest that evaluative self-reflection has different consequences for low self-esteem people than for high self-esteem people, and that order effects in personality research may represent actual changes in self-feelings rather than methodological confounds.