What is a key consequence of shared information bias in group discussions?

• A. Groups are more likely to overlook information that all members know.
• B. Groups are more likely to focus on information that only some members know.
• C. Groups tend to distrust information that is commonly known.
• D. Groups tend to spend more time discussing information that all members know and less time examining information known by only a few.

Answer: (D)

Shared information bias happens when a group discussion tends to foreground information that all members already know rather than information that only some members know. The main consequence is that groups spend more time discussing information everyone shares and far less time examining information known by only a few. This can lead to poorer decisions because unique, potentially critical insights brought by individuals are overlooked in favor of the familiar, commonly known material. In short, the bias channels attention toward what's universally known, rather than adequately exploring the unshared information that can improve the group's understanding.