The tendency to assign an internal locus of causality for our positive outcomes and an external locus for our negative outcomes.

When people are more likely to claim responsibility for successes than failures. Manifests itself as a tendency for people to evaluate ambiguous information in a way beneficial to their interests. Self-serving bias also results in a statistical bias resulting from people thinking that they perform better than average in areas important to their self esteem.3

A self-serving bias occurs when people are more likely to claim responsibility for successes than failures. It may also manifest itself as a tendency for people to evaluate ambiguous information in a way beneficial to their interests. Dale Miller and Michael Ross first suggested this attributional bias.