Nursing Professional Development Certification (NPD-BC) Practice Exam

In Shannon's information theory, what role does feedback play in communication?

1. Clarification of the message

2. Improvement of the channel

3. Termination of the communication

4. Enhancement of the sender's role

The correct answer is: Clarification of the message

In Shannon's information theory, feedback is essential as it helps clarify the message being communicated. The role of feedback allows the receiver to confirm understanding or request additional information if there is any ambiguity in the message. This iterative process enhances the effective transfer of information by minimizing misunderstandings and ensuring that the intended meaning is accurately conveyed. Feedback can also assist the sender in adjusting their communication style or content based on the receiver's responses, contributing to a more effective dialogue. This dynamic influences both the sender and receiver, making the communication process more interactive and adaptive. The other options do not accurately capture the fundamental role of feedback in communication. For instance, while feedback can occasionally lead to improvements in the communication channel, its primary function is to validate and clarify the transmitted message. Moreover, feedback does not typically serve to terminate communication; rather, it fosters continuity and engagement. Lastly, it does not exclusively enhance the sender’s role but instead enriches the entire communicative exchange.