Blind spot bias is a cognitive bias that occurs when individuals are unable to recognize their own cognitive biases. This bias can have a significant impact on group decision making, as it can lead to group members overlooking important information and making poor decisions as a result.

One major way in which blind spot bias can impact group decision making is through the phenomenon of "groupthink." Groupthink occurs when group members become so focused on maintaining consensus and avoiding conflict that they overlook important information and make poor decisions. This can be exacerbated by the presence of a strong leader or a homogenous group, as these factors can increase the pressure to conform to the group's dominant perspective.

Another way in which blind spot bias can impact group decision making is through the "echo chamber" effect. This occurs when group members only seek out information that confirms their existing beliefs, rather than actively seeking out dissenting opinions or alternative perspectives. This can lead to group members becoming isolated from dissenting opinions and perspectives, which in turn can lead to poor decision making.

Blind spot bias can also impact group decision making by leading to a lack of diversity in the group. When individuals are unable to recognize their own biases, they may inadvertently exclude individuals with different perspectives and experiences. This can lead to a lack of diversity in the group, which can in turn lead to poor decision making.