Which cognitive bias contributes to individuals believing they are less biased than others?

The cognitive bias that leads individuals to believe they are less biased than others is blind spot bias. This phenomenon occurs because people are often unaware of their own biases while still being able to recognize the biases in others. Essentially, individuals possess a lack of insight into their own judgment and decision-making processes, which leads them to think that they are more objective and rational compared to their peers. This bias can affect personal and professional relationships, as well as decision-making in group settings.

In contrast, the other biases listed do not specifically address the perception of bias in oneself relative to others. The illusion of objectivity refers to the belief that one is able to view situations or information without bias, but it does not emphasize comparison to others. Self-serving bias involves attributing successes to internal factors and failures to external factors, which does not relate to perceptions of bias. Normalcy bias refers to the belief that things will continue as they have in the past, often leading to underestimating risks or changes, and does not relate to self-perception of bias compared to others.