Summative Feedback
Summative feedback is given at the end of the communication. When you attend a political rally, a presentation given by a speaker you admire, or even a class, there are verbal and nonverbal ways of indicating your appreciation for or your disagreement with the messages or the speakers at the end of the message. Maybe you'll stand up and applaud a speaker you agreed with or just sit staring in silence after listening to a speaker you didn't like. In other cases, a speaker may be attempting to persuade you to donate to a charity, so if the speaker passes a bucket and you make a donation, you are providing feedback on the speaker's effectiveness. At the same time, we do not always listen most carefully to the messages of speakers we admire. Sometimes we simply enjoy being in their presence, and our summative feedback is not about the message but about our attitudes about the speaker. If your feedback is limited to something like, "I just love your voice," you might be indicating that you did not listen carefully to the content of the message.
There is little doubt that by now, you are beginning to understand the complexity of listening and the great potential for errors. By becoming aware of what is involved with active listening and where difficulties might lie, you can prepare yourself both as a listener and as a speaker to minimize listening errors with your own public speeches.