Self-enhancement and theory-based correction processes

Two studies examined bias correction by manipulating a perceived chronic judgmental bias (i.e., overestimator/underestimator) using a modified dot estimation task. In Experiment 1, participants corrected for this perceived estimation bias by making adjustments away from the arbitrary feedback about their personal bias tendencies. In Experiment 2, the perceived desirability of the same estimation bias was manipulated. Results indicated that self-enhancement concerns impacted perceivers' motivation to correct, at a cost to accuracy. These studies expand our current understanding of theory-based correction by including self-enhancement motives as causes of correction, demonstrating that such corrections can decrease rather than increase judgment accuracy, and illustrating the usefulness of a new perceived bias manipulation in theory testing. (C) 2010 Elsevier Inc. All rights reserved.