Dr. Johnson posts an announcement on her course web page that she is administering an exam on Thursday. On Thursday, she is surprised to find that over half of the class didn't prepare for the exam or did not study the correct material. This misunderstanding illustrates which aspect of communication competence?

Answer:The message should achieve its intended effect

Explanation:This message did not achieve it intended effect because most students did not study at all or did not focus on the correct material. This may mean that they might have been a miscommunication or the message didn't reach most students.

Communication competence refers to

how effective and appropriate the message is and how adaptive it can be.