Final answer:
The shared information bias is when group members withhold and do not discuss information that only they possess. This bias can occur when individuals want to fit in, when the answer is unclear, or when the group has expertise.
Step-by-step explanation:
The shared information bias is when group members withhold and do not discuss information that only they possess. This bias can occur when individuals want to fit in, when the answer is unclear, or when the group has expertise. In group settings, individuals may choose to withhold information to maintain the consensus or avoid disrupting the group. This bias can hinder the objective evaluation of information and lead to conformity within the group.